Admissions 2024 Integrated Programmes

Department of Statistics

Dr. Dais George

Designation : Professor

Qualification : Ph.D

Email-ID : dais@rajagiri.edu

Dr. Dais George began her illustrious career in education as a School Teacher in 1991. After a few years, she transitioned to higher education as a Lecturer at a B.Ed. Training College, before joining Nirmalagiri College, Koothuparampa in 1996 as a Lecturer in Statistics. Dr. Dais George has an extensive teaching career spanning over three decades. She has contributed significantly to the academic community through her roles at MES College, Marampally, Baselius College, Kottayam and retired from Catholicate College, Pathanamthitta, as Professor of Statistics. Under her mentorship, three Ph.D candidates have successfully earned their degrees, with five others currently in progress. She has over 50 published research papers, two authored books, and several book chapters. Her works also include major and minor research projects funded by the University Grants Commission (UGC).

  • M. Sc. - Nirmala College, Muvattupuzha, 1990
  • M. Phil - Meerut University, Meerut, 1992
  • M.Ed. - M. G. University, Kottayam, 1995
  • Ph.D. - St. Thomas College, Pala, 2012
  • Diploma in Counselling – Calicut University, 2014
  • Qualified UGC NET
  • HAS(Mathematics) - Schools in Corporative Management Schools,  Changanacherry,  1991-1993
  • Lecturer (Mathematical Education) - M. G University B. Ed Centre, Thodupuzha, July 1996 - Aug 1996
  • Lecturer (Statistics) - Nirmalagiri College, Koothuparampa, 03/09/1996 to 25/10/1999
  • Lecturer (Statistics) - M.E.S College, Marampally, Aluva,  26/10/1999 to 17/09/2000
  • Lecturer (Statistics) - Baselius College, Kottayam, 18/09/2000 to 31/05/2001
  • Lecturer, Lecturer (Senior Grade), Lecturer (Selection Grade) & Associate Professor (Statistics) – Catholicate College, Pathanamthitta, 01/06/2001 to 17/07/2018
  • Professor (Statistics) - Catholicate College, Pathanamthitta, 18/07/2018 to 31/05/2024
  • Professor and HOD (Statistics) - Rajagiri College of Social Sciences, Kalamassery, 10/06/2024 to present
  • Distribution Theory, Time Series Analysis, Bayesian Statistics & Data Mining including Web Mining
  • Completed the International Online Faculty Development Program on ‘Data Visualization and Analytics’ with Excel, Power BI, Tableau and Generative AI organized by the PG Department of Computer Applications and IQAC of Marian College Kuttikkanam (Autonomous) in association with ipsr solutions limited and Valin - UK, USA and Canada from 05 July 2024 to 11 July 2024 and has successfully completed the assessment and secured an A grade.
  • Served as Resource Person for the valedictory function of the Statistical Association organized by the Post Graduate Department of Statistics, St. Thomas College, Kozhencherry on 15th July 2024.
  • Chaired a session in the Ninth International Conference on “Recent Trends in Statistical Theory and Applications - 2024” (WSTA – 2024), June 29 – July 02, 2024 organized by Department of Statistics, School of Physical & Mathematical Sciences, University of Kerala jointly with International Statistics Fraternity (ISF), Kerala Statistical Association (KSA) and Statistics Fraternity Kerala (SFK)
  • Resource Person for International Conference on Statistics for Twenty-First Century-2020 (ICSTC-2020), Department of Statistics, Univ. of Kerala, Trivandrum, Date: December 16-19, 2020.
  • Resource Person for Two-day Regional Workshop on Statistical Tools and Data Analysis, St. Thomas College, Kozhencherry, Date: January 28-29, 2020.
  • Resource Person for Fifth International Conference on Statistics for Twenty-First Century-2019, Department of Statistics, Univ. of Kerala, Trivandrum, Date: December 18-20, 2019.
  • Resource Person for National Seminar on Statistical Methods and Application sponsored by Directorate of Collegiate Education, Govt. of Kerala, Govt. Arts and Science College, Calicut, Date: December 15-17, 2016.
  • Resource Person for UGC sponsored National Seminar, Newmann College, Thodupuzha, Date: August 30, 2013.
  • A New Class of Pareto Distribution: Estimation and Its Applications, Journal: Applications and Applied Mathematics (ESCI Journal), ISSN: 1932-9466, 2023.
  • A New Discrete Rayleigh Distribution and Its Application in Immunogold Assay Data, Journal: International Journal of Membrane Science and Technology (Scopus Indexed), ISSN (online): 2410-1869, 2023.
  • On the Robustness of Right Truncated Esscher Transformed Laplace Distribution, Journal: Applied Mathematics & Information Sciences (Scopus Indexed), ISSN: 1935-0090 (print), 2325-0399 (online), 2023.
  • Reliability Test Plan for the Poisson-Power Lindley Distribution, Journal: Reliability: Theory and Applications (Scopus Indexed), ISSN: 1932-2321, 2023.
  • Application of Three Parameter Esscher Transformed Laplace Distribution in Reliability and Finance, Journal: Journal of Scientific Research (UGC Care Listed), ISSN: 0447-9483, 2023.
  • Exponentiated Discrete Hypo Exponential Distribution and Its Generalizations, Journal: Reliability: Theory and Applications (Scopus Indexed), ISSN: 1932-2321, 2023.
  • The Poisson-Uniform Distribution and Its Applications, Journal: International Journal of Statistics and Reliability Engineering (UGC Care Listed), ISSN (P): 2350-0174, ISSN (O): 2456-2378, 2022.
  • An Autoregressive Process with Marshall-Olkin Generalized Esscher Transformed Laplace Marginal, Journal: Aligarh Journal of Statistics (UGC Care Listed), ISSN: 0971-0388, 2022.
  • A New Discrete Weibull Distribution and Its Application in Immunogold Assay Data, Journal: Stochastic Modeling and Applications (UGC Care Listed), ISSN: 0972-3641, 2021.
  • Kumaraswamy Esscher Transformed Laplace Distribution: Properties, Application, and Extensions, Journal: Pakistan Journal of Statistics and Operations Research (Scopus Indexed), ISSN: 1816-2711, E-ISSN: 2220-5810, 2020.
  • Multivariate Esscher Transformed Laplace Distribution, Journal: Journal of Statistical Theory and Applications (Scopus Indexed), ISSN (Online): 2214-1766, ISSN (Print): 1538-7887, 2020.
  • Bayesian Analysis of Two Parameter Weibull Distribution Using Different Loss Functions, Journal: Stochastic Modeling and Applications (UGC Care Listed), ISSN: 0972-3641, 2020.
  • Discrete Esscher Transformed Laplace Distribution and Its Application, Journal: Stochastic Modeling and Applications (UGC Care Listed), ISSN: 0972-3641, 2020.
  • The Marshall-Olkin Weibull Truncated Negative Binomial Distribution and Its Applications, Journal: STATISTICA (Scopus Indexed), ISSN: 1973-2201, 2019.
  • q-Esscher Transformed Laplace Distribution, Journal: Communication Statistics-Theory and Methods (Taylor and Francis Group, SCI Journal), Print ISSN: 0361-0926, Online ISSN: 1532-415X, 2019.
  • A Generalized Esscher Transformed Laplace Distribution and Its Application, Journal: International Journal of Statistics and Applied Mathematics (UGC Listed), ISSN: 2456-1452, 2018.
  • A Mixed Asymmetric Laplace Moving Average Process, Journal: Global Journal of Pure and Applied Mathematics (UGC Listed), ISSN: 0973-1768, 2017.
  • Estimation of Three Parameter Esscher Transformed Laplace Distribution, Journal: International Journal of Statistics and Systems (UGC Listed), ISSN: 0973-2675, 2017.
  • A First Order Moving Average Model with Esscher Transformed Laplace Innovations, Journal: International Journal of Statistics and Systems (UGC Listed), ISSN: 0973-2675, 2017.
  • Lower Confidence Limits for Process Capability Indices, Journal: Catholicate Journal of Studies and Research, ISSN: 2249-149X, 2017.
  • On a Generalization of Marshall-Olkin Weibull Distribution and Its Applications, Journal: Journal of Kerala Statistical Association, ISSN: 2249-4553, 2017.
  • Esscher Transformed and Geometric Esscher Transformed Laplace Processes, Journal: Far East Journal of Theoretical Statistics (UGC Listed), ISSN: 0972-0863, 2016.
  • Log-Esscher Transformed Laplace Distribution and Its Applications, Journal: Journal of Probability and Statistical Science (UGC Listed), ISSN: 1726-3328, 2016.
  • Some Random Coefficient Models with Laplace Marginals, Journal: International Journal of Statistical Distributions and Applications (UGC Listed), ISSN: 2472-3487, 2016.
  • A Robust Estimator of R = P(X > Y) of Heavy-tailed Distributions and Its Sampling Distributions, Journal: Mathematics and Statistics, ISSN: 2332-2071 (Print), 2332-2144 (Online), 2014.
  • Marshall-Olkin Esscher Transformed Laplace Distributions and Processes, Journal: Brazilian Journal of Probability and Statistics (SCI Journal), ISSN: 0103-0752, 2013.
  • Sampling Distributions of the Estimators of Pareto Distribution, Journal: Vimala International Research Journal for Pure and Applied Sciences, ISSN: 2347-3835, 2013.
  • Spatio-temporal Trajectory Similarity and Applications in Mining Tourist Mobility, Journal: International Journal of Tourism and Travel, ISSN: 0974-2603, 2012.
  • Esscher Transformed Laplace Distributions and Its Applications, Journal: Journal of Probability and Statistical Sciences (UGC Listed), ISSN: 1726-3328, 2012.
  • Application of Generalized Confidence Interval in the Study of Web Performance, Journal: International Journal of Web Applications, ISSN: 0974-7710 (Print), 0974-7729 (Online), 2011.
  • Application of Esscher Transformed Laplace Distribution in Web Server Data, Journal: Journal of Digital Information Management (UGC Listed), ISSN: 0972-7272, 2011.
  • Trajectory Clustering of Network Constrained Moving Objects and Applications to Web Usage Mining, Journal: ACUMEN, ISBN: 0975-6981, 2011.
  • Reliability Estimation in Stress-Strength Models Using Hill and Harmonic Moment Estimators, Journal: STARS, ISSN: 0973-7804, 2010.
  • Analyzing the Tail Heaviness of Web Server Data, Journal: International Journal of Web Applications, ISSN: 0974-7710 (Print), 0974-7729 (Online), 2009.
  • Role of Statistics in Data Mining, Journal: STARS, ISSN: 0973-7804, 2005.
  • Inquiry Training Model: Opportunities in E-Learning, Journal: University News - A Weekly Journal of Higher Education, ISSN: 0566-2257, 2005.

BOOKS PUBLISHED

  • Mobility Mining in Moving Object Trajectories, Published by Lulu Publication, Raleigh, North Carolina, United States, June 2018, ISBN: 978-1-387-86863-6
  • Recent Advances in Statistical Computing and Data Analysis, Published by Catholocate College Press, 2015, ISBN: 978-93-5104-845-1

ARTICLES/CHAPTERS PUBLISHED IN BOOKS

  • "Modeling and Forecasting Tuberculosis Cases Using Machine Learning and Deep Learning Approaches: A Comparative Study," Lecture Notes on Data Engineering and Communications Technologies book series, Vol 137. Springer, Singapore, September 2022. https://doi.org/10.1007/978-981-19-2600-6_11. ISBN: 978-981-19-2599-3.
  • One Chapter "Random Experiment" of the book Short Learning Objects in E-Learning and MOOCs, Department of Printing and Publishing, Mahatma Gandhi University, 155–161, 2019.
  • One Chapter "A Review on Asymmetric Laplace Distribution and its Applications in Time Series Modelling" in Recent Advances in Statistical Theory and Computational Techniques, Post Graduate and Research Department of Mathematics and Statistics, Catholicate College, Pathanamthitta, 16-22, 2015. ISBN: 978-93-5104-845-1.
  • One Chapter "Three Parameter Esscher Transformed Laplace Distribution" in Recent Advances in Statistical Theory and Computational Techniques, Post Graduate and Research Department of Mathematics and Statistics, Catholicate College, Pathanamthitta, 54-62, 2015. ISBN: 978-93-5104-845-1.
  • One Chapter "A Review on Discrete Analogue of Some Continuous Distributions" in Recent Advances in Statistical Theory and Computational Techniques, Post Graduate and Research Department of Mathematics and Statistics, Catholicate College, Pathanamthitta, 23-28, 2015. ISBN: 978-93-5104-845-1.
  • One Chapter "A Generalization of the Esscher Transformed Laplace Distribution with Applications" of the book Collection of Recent Statistical Methods and Applications, Dept. of Statistics, Univ. of Kerala, 83-96, 2013. ISBN: 978-93-5104-845-1.
  • One Chapter "Location Scale Family of Log-Esscher Transformed Laplace Distribution" in Advances in Statistical Theory and Computational Applications, Department of Statistics, Newman College, Thodupuzha, 29-41, 2013.
  • One Chapter "Fuzzy Process Capability Indices" in Process Capability Studies with Special Emphasis on Computational Techniques and Recent Trends in Statistics, Nirmala Academic and Research Publications, Nirmala College, Muvattupuzha, 15-26, 2013.
  • One Chapter "Web Characteristics Related to Time Dimension" of the Book Computing and Communication, Narosa Publications, 48-54, 2012.
  • One Chapter "Trajectory Data Management in Spatio-Temporal Databases and Applications in Climatological Study" in Proceedings of 24th Kerala Science Congress, KSCSTE, 443-445, 2012.
  • One Chapter "WEBTRACLUS: A Spatio-Temporal Trajectory Clustering Tool for Personalisation in Healthcare Web Portals" in PETRA 11 Proceedings, ACM Digital Library, 2011. https://doi.org/10.1145/2141622.2141699. (UGC Care Listed).
  • One Chapter "Generalized Confidence Interval for R = P(X > Y) of Pareto Distribution and its Application in Web Performance" in IEEE Proceedings, IEEE Xplore, 153-180, 2011. https://doi.org/10.1109/ICADIWT.2011.6041426. (UGC Care Listed).
  • "Reliability Estimation in Heavy-tailed Distributions Using a Robust Estimator," IEEE Xplore, 481-485, 2011. https://doi.org/978-1-4577-0628-8/11/526.00C2011. (UGC Care Listed). ISBN: 978-1-4577-0628-8.
  • One Chapter "SmooWeighted Hill Estimator for the Tail Index Parameter in File Size Distribution of Web Usage Pattern" in New Trends in Applied Statistical Methodology, Nirmala Academic and Research Publications, Nirmala College, Muvattupuzha, 11-26, 2010.
  • One Chapter "A Study on the Characteristics of Web Server Data" in Data Engineering and Management, ICDEM 2008, Bishop Heber College, Puthur, Tiruchirappalli, 170-173, 2008.
  • Kumaraswamy Generalization of Esscher Transformed Laplace Distribution, International Conference on Recent Advances in Statistical Methodology with Applications in Clinical and Official Statistics, St. Thomas College, Pala, Kerala, India, Date: January 3-5, 2018, Sponsoring Agency: MOSPI, ICMR, DST, UGC.
  • Three-Parameter Esscher Transformed Laplace Distribution and its Applications, International Conference on Stochastic Modeling, Department of Statistics and Biostatistics, St. Thomas College, Pala, Date: January 3-4, 2014, Sponsoring Agency: MOSPI, ICMR, DST, UGC, KSA.
  • Spatio-Temporal Disease Clustering Using Spatial Scan Statistic, International Conference on Epidemiology, Department of Statistics and Biostatistics, St. Thomas College, Pala, Date: August 16-18, 2012, Sponsoring Agency: MOSPI, ICMR, DST, UGC, CSIR, KSCSTE.
  • Modeling File Size Distribution of Web Usage Pattern Using an Asymmetric Heavy-Tailed Distribution, International Conference on Statistics and Information Analytics, Loyola College, Chennai, Date: August 23-25, 2012, Sponsoring Agency: UGC.
  • Generalized Confidence Interval for R=P(X>Y) of Pareto Distribution and its Application in Web Performance, International Conference on Mathematical Sciences in Honour of Professor A.M. Mathai, Greece, Date: January 3-5, 2011, Sponsoring Agency: DST, UGC, CSIR, KSCSTE.
  • Reliability Estimation in Stress-Strength Models Using Hill and Harmonic Moment Estimators, International Conference on Actuarial Statistics, Bio-Statistics, and Stochastic Modeling, Department of Statistical Sciences, Kannur University, Date: January 10-14, 2011, Sponsoring Agency: UGC.
  • Reliability Estimation in Heavy-Tailed Distributions Using a Robust Estimator, IEEE International Conference on Quality and Reliability, Bangkok, Thailand, Date: September 14-16, 2011, Sponsoring Agency: IEEE.
  • Class of Marshall-Olkin Asymmetric Laplace Distribution and its Application in Time Series Modeling, International Conference on Statistics and Information Analytics, Loyola College, Chennai, Date: January 11-13, 2010, Sponsoring Agency: UGC.
  • Generalization and Application of Normal-Esscher Transformed Laplace Distribution, National Seminar on Innovative Approaches in Statistics in Conjunction with Annual Conference of the KSA, St. Thomas College, Thrissur, Kerala, India, Date: February 15-17, 2018, Sponsoring Agency: KSA.
  • q-Esscher Transformed Laplace Distribution, National Seminar on Applied Statistical Methodology with Special Emphasis on Time Series Analysis and Annual Conference of the Kerala Statistical Association, P.G. & Research Dept. of Statistics, Nirmala College, Muvattupuzha, Date: February 12-13, 2016, Sponsoring Agency: UGC.
  • Marshall-Olkin Extended Esscher Transformed Laplace Distribution, National Seminar on Recent Advances in Statistical Techniques for Data Analysis and the Importance of Statistical Softwares, Dept. of Statistics, Assumption College, Changanacherry, Date: August 10-11, 2015, Sponsoring Agency: UGC.
  • Modeling the Heavy-Tailed Behavior of Web Traffic Variables Using Esscher Transformed Laplace Distributions, National Seminar on Recent Advances in Statistical Theory and Computational Techniques, Dept. of Statistics, Catholicate College, Pathanamthitta, Date: February 6-7, 2015, Sponsoring Agency: UGC, KSA.
  • Extended Esscher Transformed Laplace Distribution, National Level Conference on Interdisciplinary Realms of Statistics in Conjunction with the Annual Conference of KSA, Dept. of Statistics, Sree Kerala Varma College, Thrissur, Date: January 9-10, 2015, Sponsoring Agency: UGC.
  • A Class of Heavy-Tailed Distributions and Their Applications, National Seminar on Process Capability Studies with Special Emphasis on Computational Techniques and Recent Trends in Statistics, Postgraduate and Research Dept. of Statistics, Nirmala College, Muvattupuzha, Date: October 3-5, 2013, Sponsoring Agency: UGC.
  • A Study on a Class of Asymmetric Laplace Distributions, National Seminar on Statistical Theory and Applications, Department of Statistics and Biostatistics, St. Thomas College, Pala, Date: March 15-16, 2013, Sponsoring Agency: KSA.
  • Estimation of P(X > Y) for Esscher Transformed Laplace Distribution, National Seminar on Recent Advances in Computational Statistics-Theory and Methods, Dept. of Statistics, Bharathidasan University, Thiruchirappalli, Date: February 17-18, 2012, Sponsoring Agency: UGC.
  • Autoregressive Processes with Esscher Transformed Laplace Marginals, National Seminar on Recent Trends in Statistics and Related Areas and Annual Conference of Kerala Statistical Association, Department of Statistics, University of Calicut, Date: March 15-17, 2012, Sponsoring Agency: KSA.
  • Web Characterization Related to Time Dimension, National Conference on Computing and Communication, School of Computer Science, M.G. University, Kottayam, Date: May 26-27, 2011.
  • Marshall-Olkin Esscher Transformed Laplace Processes, National Conference on Statistics for Twenty-First Century, Department of Statistics, University of Kerala, Date: March 17-19, 2011, Sponsoring Agency: UGC, KSA.
  • Data Mining Techniques and Applications, National Seminar on Data Mining Techniques and Applications, Dept. of Computer Applications, Marian College, Kuttikkanam, Date: March 16-17, 2007, Sponsoring Agency: UGC, M.G. University, Kottayam.
  • Analysis of Tail Index of Web Server Data, National Conference on Statistics and Computer Applications and 10th Annual Conference of the Society of Statistics, Computer and Applications, Department of Statistics, St. Thomas College, Pala, Date: November 16-18, 2007, Sponsoring Agency: S.S.C.A, M.G. University, Kottayam.
  • Challenges Faced by Statistics as a Tool in Data Mining, Emerging Trends, Challenges and Opportunities in Database Technology, Dept. of Computer Applications, Marian College, Kottayam, Date: March 17-18, 2006, Sponsoring Agency: UGC, M.G. University, Kottayam.
  • Interacting Roles of Data Mining and Statistics, XXIVth Annual Conference of Indian Society for Probability and Statistics and National Seminar on Recent Advances in Statistical Theory and Applications, Department of Statistics, St. Thomas College, Pala, Date: November 4-6, 2004, Sponsoring Agency: DST, CSIR, RBI, Rubber Board.
  • National Web based Seminar on Recent Trends in Statistical Theory and Applications, Department of Statistics, University of Kerala, Trivandrum, ISPS, KSA, and Department of Statistics, University of Kerala, 29 June - 01 July 2020
  • Faculty Development Programme (Online) on Virtual Teaching-Learning MOODLE the Efficient Way, Dr. M.G.R Educational And Research Institute, The Institution of Engineers (India), Tiruvallur Local Centre, 29-30 May 2020
  • Faculty Development Programme (Online) on Artificial Intelligence, Dept. of Computer Science and Engineering, Sreedevi Women’s Engineering College, Vattnagapally, Hyderabad, National Youth Council of India & Brainovision Solutions India Pvt. Ltd., 22-26 May 2020
  • Faculty Development Programme on MOOCs and E-Content Development, M.G. University, Kottayam, M.G. University, Kottayam, 04-08 February 2019
  • National Workshop on Statistical Data Analysis using SPSS and R, Dept. of Mathematics/Statistics, Baselious College, Kottayam, UGC, 23-25 January 2014
  • National Workshop on A-VIEW, Amal Jyothi College of Engineering, Kottayam, NME-ICT (MHRD), 14 December 2012
  • Orientation Programme on Women Empowerment, Dept. of Student Services, M.G. Univ. & Catholicate College, Pathanamthitta, UGC, 19-20 September 2012
  • Science Academies Lecture Workshop on Statistical applications in Industry, Business, Agriculture and Ecology, Department of Statistics, St. Thomas College, Pala, IAS Bangalore, INSA New Delhi & NASI Allahabad, 26-28 March 2011
  • National Workshop on Bayesian Statistics & MCMC Methods using BUGS & R, Department of Statistics, St. Thomas College, Pala, 26-30 June 2009
  • National Workshop on Fractional Calculus and Statistical Distributions, Centre for Mathematical Sciences, Pala, DST, 25-27 November 2009
  • Workshop in MATLAB and MATHEMATICA, Dept. of Mathematics, Govt. College, Kottayam, UGC, 20-22 February 2007
  • Formulation of Research Projects for funding, Kerala Academy of Sciences & Catholicate College, Pathanamthitta, 26-08-2006
  • National Workshop and Lecture Series on Statistics in Theory and Practice, Department of Statistics, St. Thomas College, Pala, 1-3 October 2003
  • Life Member; Indian Society for Probability and Statistics;
  • Secretary/Vice President/Life Member; Kerala Statistical Association
  • Professor T.S.K. Moothathu best Paper Award by Kerala Statistical Association
  • NET (2006)
  • Worked as HOD in Department of Statistics in Various Colleges
  • Member IQAC, Catholicate College, Pathanamthitta
  • Member, College Council in Various Colleges
  • Co-ordinator, Add on Courses, Catholicate College, Pathanamthitta
  • Director Boad Member, Co-operative Society, Catholicate College, Pathanamthitta
  • Subject expert for appointment of college teachers under M.G University
  • U.G Board of studies member
  • Core committee member of Add- on Courses, M.G University
  • Director Boad Member, Co-operative Store, Catholicate College, Pathanamthitta
  • Convenor of College Purchase Committee
  • Observer of National Level Examinations, JEE Main, NEET, ICAR, UGC& KMAT
  • Secretary/Vice-president of Kerala Statistical Association
  • Chairman, Deputy chairman and Chief Examiner of UG Examinations & Chief Examiner of PG Examinations
  • Question paper setter of Universities and Autonomous College for UG & Ph. D Course work Examinations
  • Member of admission committee, Election Committee and internal examinations Committees
  • Criteria Convenor of NAAC reaccreditation process for the 3rd and 4th cycle
  • Convenor/Organizing Committee member of National Seminars, International Seminars & Regional Seminars
  • Member, Pastoral Council, Kanjirappally Diocese