2012 — Department of Statistics, University of Calcutta under the UGC DSA visiting scheme and delivered a series of 2 lectures on Time Series Analysis during 26 – 30, March 2012.
2013 — Department of Statistics, University of Panjab, under UGC SAP visiting scheme and presented a series of 3 lectures on Financial Time Series Analysis during 24 – 30, November 2013.
2014 — Engaged Special Lecture Series (10 lectures) on Financial Time Series at the Department of Statistics, Mangalore University under their UGC Innovative program during 21-25, April 2014.
2016 — Visited the Department of Statistics, University of Connecticut, Storrs, USA during 8-11, March 2016 and presented a Colloquium talk on Multiplicative error models for nonnegative time series.
2016 — Visited the Department of Mathematics and Statistics, University of Maryland, Baltimore County during 7-8, April 2016 and presented a Colloquium talk on Varying kernel estimation for nonnegative time series.
2017 — School of Mathematics and Statistics, University of Hyderabad to deliver series of 2 lectures on Time series analysis during 5 – 8, September 2017.
2019 — Department of Mathematics and Statistics, Indian Institute of Technology, Kanpur to continue research collaboration on Measurement error models and time series, during 6-11, April 2015 and 4- 10, August 2019.
2019 — Visited Memorial University, Newfoundland, Canada during 16 – 20, November 2019. Presented a colloquium talk in the Department of Mathematics and Statistics.
Training Sessions and Inter-Disciplinary Lectures
2009 — An Introduction to Statistics in Economics. Invited talk at National seminar on Statistical Techniques in Management, Social and Biological Sciences, Lingaraj College, Belgaum, 13-14, February 2009.
2010 — A Bird’s eye view of the applications of Statistics in inter-disciplinary research, Invited talk at National Seminar on Interdisciplinary applications in Statistics, Maharaja’s College, Ernakulam, 25 -26, November 2010.
2013 — Regression analysis at a National Seminar on Modern Statistical Tools in Fisheries at School of Industrial Fisheries, Cochin University of Science and Technology, March 9, 2013.
2013 — Business Statistics for Short term Courses for Managers at ISI Bangalore during June, 2013.
2013 — Basic Time Series for the Internship program for M.Sc students organized by the ISI Chennai, 17 – 19, June 2013.
2013 — Served as a resource person for the Workshop on Random Processes and Applications at College of Engineering, Karunagappally, September, 10, 2013.
2013 — Resource person at ISI Bangalore for a short term course for Managers on Business Statistics. September 26, 2013.
2013 — Served as resource person in the UGC sponsored National Seminar on ”Process Capability Studies with Special Emphasis on Computational Techniques and Recent Trends in Statistics” at Nirmala College, Muvattupuzha, 3-5, October 2013.
2014 — Delivered an Invited lecture on Markov Processes at a National Workshop on Probability Theory and its Applications, Amal Jyothi College of Engineering, Kanjirapally, 28-30, April 2014.
2015 — Engaged classes on Time series as a Resource person at TEQIP sponsored Short time training program on Statistical Techniques and Applications in Engineering Research at Government Engineering College, Trichur on 19 March 2015.
2016 — Lecture and hands-on training for a Tequip Workshop on Linear and non-linear signals in Biomedical Engineering at NIT, Raipur during 9-11, September 2016.
2016 — Engaged two lectures at aWorkshop on Random Processes and Applications held at MES College of Engineering ,Kuttipuram during 26 – 27, October, 2016.
2016 — Delivered two lectures on Introduction to ARCH/GARCH models for a training program on Time Series at College of Engineering Trivandrum, 16 November, 2016.
2017 — Delivered a talk on Time Series Analysis in the Workshop on Applied Statistical Techniques held at CUSAT, 19 – 21, January 2017.
2017 — Resource person for UGC-HRDC Refresher Course for Basic Sciences at University of Calicut on 22. 06. 2017.
2017 — Resource person at National Workshop on Statistical Methods for Data Analysis Using R at University of Kerala, 28. 10. 2017.
2017 — Resource person and Convener of A workshop on Time-to-events and Time series data analysis using R at CUSAT, 15 -18, December 2017.
2018 — Resource person for a Workshop on Time series analysis at Manipal Academy of Higher Education, August 1-2, 2018.
2018 — Resource person for aWorkshop on Forecasting at Government Arts and Science College, Kozhikode. October 26, 2018.
2018 — Resource person on Time series forecasting in the special summer refresher course in mathematical sciences at Kannur University, 01-21, March 2018.
2020 — Resource person for a Refresher Course in Mathematics and Statistics, Academic Staff College, University of Madras, 20 October, 2020.
2020 — As a part of Public Outreach Program, delivered a talk on Time Series Forecasting for M.Sc students affiliated to the University of Calicut organized by Farooke College, Kozhikode, October 28, 2020.
2023 — Resource person in a Refresher Course for Statistics teachers at Bharathiar University Coimbatore, March 3rd, 2023.
2023 — Resource person in a Refresher Course in Mathematics and Astronomy at University of Calicut, October 7th, 2023.
Invited Speaker at National / International Seminars in India
1998 — Estimation of limiting Availability for a bivariate exponential autoregressive process in a Workshop on Reliability Modeling held at Indian Institute of Technology, Bombay, November, 1998.
2003 — Spectral analysis of stochastic and chaotic shot noise processes at an International conference on Recent developments in Statistics and Probability, University of Pune, December 22-24, 2003.
2004 — Estimation for non-Gaussian Time series at the Annual Conference of ISPS, St.Thomas College, Palai, 2-4, November 2004.
2005 — Discrete chaos: Statistical Independence and dependence at the International conference on the future of statistical theory, practice and education, Indian school of business, Hyderabad, December 27 2004- January 2, 2005.
2005 — Applications of queuing models in Automatic control loops with feedback at the International Conference on Reliability, Statistics and Related Areas, Indian Institute of Management, Calicut, January 6-8, 2005.
2006 — Statistical effects from discretizing chaos, National Conference on Statistical Inference, University of Pune, January 8 – 10, 2006.
2008 — Product form of gamma stochastic volatility models at National Seminar on Recent Advances in Statistics & Analysis of Non-Conventional Data, March 15 – 17, 2008, Farook College, Calicut.
2009 — Some Results in Financial Time Series models at National Seminar on Recent Trends in Statistics, Feb 12 – 14, 2009, Nehru College, Kanhangad.
2010 — Stochastic volatility processes generated by product autoregressive models at the Annual Conference of International Indian Statistical Association held at Vishakapatnam during 4-8, January 2010.
2010 — Product Autoregressive Models for non-negative data. National Seminar on New Trends in Applied Statistical Methodology, Feb 25 – 27, 2010, Nirmala College, Muvattupuzha, Kerala.
2010 — Stochastic Volatility Processes driven by some product autoregressive models. International Conference on Development and Applications of Statistics in emerging areas of Science and Technology, University of Jammu, December 8-10, 2010.
2011 — Some Bivariate Distributions Evolved From the study of Non- negative time series. International conference on Actuarial statistics, Bio statistics and Stochastic Modeling, Kannur University, January 12-14, 2011.
2011 — Stochastic volatility process generated by an extreme value autoregressive model. National Conference on Statistics for twenty first century, University of Kerala, March 17 – 19, 2011.
2011 — Financial Time Series at a Workshop on Statistical Applications in Industry, Business, Agriculture and Ecology, St. Thomas College, Palai, 26 – 28, March 2011.
2011 — Product autoregressive gamma sequences for modeling stochastic volatility at a National seminar at Bangalore University, 16 – 18, November, 2011.
2012 — Inverse Gaussian duration models at Indian Science Congress, held at Bhubaneshwar, 3-7, January 2012.
2012 — Modeling and analysis of financial time series at National Seminar on Stochastic Modeling, March 21-22, 2012, Kannur University.
2012 — Inverse Gaussian models for conditional durations at a National Seminar on Recent Tends in Statistics and Related Areas, March 15 – 17, 2012. University of Calicut.
2012 — Resource person at the National Workshop on Mathematical Modelling and Analysis of Financial Data organized by the Department of Statistics, University of Pune, 24 – 29, September 2012.
2012 — Applications of Stable Autoregressive Models in Signal Processing. International Conference on Optimization, Modeling and Applications, University of Delhi, November 29 – December 1, 2012.
2012 — Stable Autoregressive Model and its Applications. National Conference on Statistics for Twenty-first century , University of Kerala, 10 – 12, December, 2012.
2012 — Parameter Estimation in Some Multiplicative Error Time Series Models, ICONFROST-2012 and 32nd Annual conference of Indian Society for Probability and Statistics (ISPS), Pondicherry University, 21 – 23, December 2012.
2013 — Stochastic Volatility Processes Generated by Product Autoregressive Models, Annual Conference of International Indian Statistical Association held at Chennai, 2- 5, January 2013.
2013 — Multiplicative Error Models for Financial Time Series, National Conference on Recent Advances in Statistics with Application in Finance and Actuarial Science, 22- 23, February, 2013. Central University of Rajasthan, Kishengarh, Ajmer.
2013 — On Multiplicative error models for financial time series at National Seminar on Statistical Theory and Applications, 15-16, March 2013. St. Thomas College, Palai.
2013 — Served as resource person in the UGC sponsored National Seminar on ”Advances in Statistical Theory and Computational Applications” at Newman College, Thodupuzha, 29 – 30, August 2013.
2013 — Resource person in aWorkshop on Financial Modeling and Analysis, Department of Management Studies, IIT Chennai, 5-9, November 2013.
2013 — Delivered a lecture at Central Plantation Crops Research Institute, Kayangulam on Time Series Analysis on the occasion of celebrating International Year of Statistics, December 18, 2013.
2013 — Organized and Chaired a session on Time Series Analysis in the International Conference on ”Recent Advances in Statistics and Their Applications” at Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, December 26-28, 2013.
2014 — Presented a Key Note Lecture on Modeling of Stochastic Volatility in Financial Time Series at a National Conference on ”Recent Advances in Statistics” Osmania University, Hyderabad, 21 – 22, February, 2014.
2014 — SARIMA models for forecasting emergency telephone calls at National Conference on Statistics for Twenty-first century , University of Kerala, 20– 22, March, 2014.
2014 — Presented an invited talk on Some bivariate distributions evolved from product autoregressive models at an International conference on Statistics and Information technology for a growing nation at S.V University, Tirupati, 30 Nov.- 2 Dec, 2014.
2014 — Non-Gaussian time series and stochastic volatility models in finance. National Workshop on Financial Data Analysis, 27-30, December 2014. C R Rao AIMSCS, Hyderabad.
2015 — Estimation for non-negative time series. National Conference on Recent Advances in Statistics, 2-3, January 2015. University of Pune.
2015 — Delivered a talk in International Workshop on Reliability and Time Series Methodology Relevant to Business and Industry on ”On ARCH and GARCH Models”, CUSAT, January 5-7, 2015.
2015 — Extreme value autoregressive models and its applications at a National Conference on Interdisciplinary realms of Statistics at Sree Kerala Varma College, Thrissure, 9-10, January 2015.
2015 — Time Series Models for Forecasting at a National Seminar on Applications of Statistics in Research, Planning and Industry, Mount Carmel College, Bangalore, 5-7, February, 2015.
2015 — Presented an Invited talk on Financial Time Series analysis at a Research Workshop and Conference on Statistical Methods in Finance, Chennai Mathematical Institute, July 13-17, 2015.
2016 — Participated in MHRD sponsored Workshop on Flexible Statistical Modelling by Prof. Adrian Bowman, University of Glasgow at under the GIAN (Global Initiative for Academic Network) at Mangalore University, 10 – 14, October 2016.
2016 — Role of time series in option pricing at a National Seminar on Applied Statistics and Quantitative Finance, Government Victoria College, Palakkad, 8-9, December 2016.
2016 — A kernel density estimator for positive time series at International Conference on Statistical Methods in Finance, Chennai Mathematical Institute, 19 – 22, December 2016.
2017 — A kernel based regression estimator for positive time series at National Conference on Recent Advances in Statistics and Their Applications to Society. SavitribaiPhule University, Pune during 23 – 25, March 2017.
2017 — Invited Talk on Statistical Modelling of volatility in Financial time series at the 11th National Statistics Day Conference held at Reserve Bank of India, Mumbai on 4th July 2017.
2017 — Invited talk on Varying kernel autoregressive function estimator for positive time series at IISA International Conference on Statistics, Hyderabad International Convention Centre, 27 – 30, December 2017.
2018 — Invited talk on Modeling stochastic volatility using Birnbaum – Saunders Markov sequence at an International Conference on Recent Advances in Statistical Methodology with Applications in Clinical and Official Statistics. St. Thomas College, Palai, 03 - 05, January 2018.
2018 — Invited talk on Goodness of tests based on varying kernel for a positive time series at International Conference on Theory and Applications of Statistics and Information Sciences, Bharathiar University, Coimbatore, 5-7, January 2018.
2018 — Resource person for Time series analysis (3 lectures) at a three day workshop-cum-Seminar in Statistics at University of Mysore, 08-10, February 2018.
2018 — Invited talk on Time series with Birnbaum-Saunders marginal distributions. Fourth international conference on Statistics for twenty first century. University of Kerala, December 13-15, 2018.
2018 — Invited talk on Applications of B-S distribution in modelling stochastic volatility.at International Conference on Statistical Methods in Finance, Chennai Mathematical Institute, 17 – 19, December 2018.
2018 — Invited talk on Some non-Gaussian stochastic volatility models, International conference on emerging innovations in Statistics & Operations Research. M.D. University, Rohtak, December 27 – 30, 2018.
2019 — Invited talk on Analysis of autoregressive models with symmetric stable innovations. International Conference on Computer Age Statistics in an Era of Big and High Dimensional Data. University of Pune, January 3-5, 2019.
2019 — Invited talk on Autoregressive models with stable errors and its applications. National conference on Recent advances in Statistics and Statistical practice. Sardar Patel University, Anand, Gujarat, 1-2, March, 2019.
2019 — Invited talk on Analysis of Non-negative Time series using Multiplicative Error Models, National conference on Statistical theory, modelling and applications. Bharathiar University, Coimbatore, 14-15, March 2019.
2019 — Invited talk on Statistical volatility generated by product autoregressive models in Statfin Conference at Chennai Mathematical Institute, 19-21, 2019.
2019 — Invited talk on generalized gamma SV model and its applications in Annual Conference of ISPS at Utkal University, Bhuvaneswar, 21-23, December 2019.
2019 — Invited talk on non-Gaussian models for co-integrating time series in IISA 2019 Conference : innovations in Data and Statistical Sciences. IIT, Mumbai, 27-30, December 2019.
2020 — Invited talk on Bi-variate Co-integrating time series at National Seminar in Applied Statistics and Symposium in Stochastic modeling, St. Thomas College, Trichur, 4-6, March 2020.
2020 — Invited talk on Model selection criteria in time series at International Webinar on Advances in Statistics and Data Science for Sustainable Human development, S V University, Tirupati, 7-10, September 2020.
2020 — Invited talk on Zero inflated count series with Markovian intensities at the International Virtual Conference on Advanced Statistical Techniques in Business and Industry, A Regional Virtual Conference of International Society for Business and Industrial Statistics (ISBIS) at CUSAT, 28-30, December 2020.
2021 — Invited speaker: Visionary Innovations in Statistical Theory and Applications, Online conference by ICAR - National Academy of Agricultural Research Management (ICAR - NAARM), Hyderabad, 24-28, February, 2021.
2021 — Invited speaker at the Fifth International Webinar on Recent Trends in Statistical Theory and Applications-2021 (WSTA– 2021), University of Kerala, 29th June - 2nd July 2021.
2022 — Invited talk on Zero-inflated Count Time series at a Webinar on Recent Innovations in Statistics, University of Calicut, June, 8-9, 2022.
2023 — Presented an Invited talk on Autoregressive-type models for count time series at an International Conference on Statistical Sciences and Stochastic Modelling. University of Calicut, 16-17 February, 2023.
2023 — Presented an invited talk on Stochastic Models for Count Time Series at International Conference on Statistics “NEW AGE STATISTICS FOR DATA SCIENCE AND ARTIFICIAL INTELLIGENCE”, NMIMS, Mumbai, 20-23 March 2023.
2023 — Invited talk on ”Models for Count time series” at Online workshop in memory of Professor C R Rao, ICAR, New Delhi, 10th September, 2023.
2024 — Invited talk on Goodness of fit for time series at International conference on Statistics and Data Science.45th annual conference of Kerala Statistical Association held at Sri Sankara College, Kalady, Kerala, 22-24, January 2024.
2024 — Invited talk on GARMA models for non-Gaussian time series, International Conference on Advances in Data Analytics and Official Statistics, SPP University, Pune, 24-26 May 2024.
2024 — G. Shankaranarayanan Endowment lecture at the Annual Conference of Indian Society for Probability and Statistics, Kurukshetra University, Haryana, 21- 23, December 2024.
2024 — Invited talk at International Indian Statistical Association (IISA) 2024, CUSAT, Cochin, 27- 31, December 2024.
2025 — Invited talk at International Seminar on Applied Statistics and Data Analysis, University of Calicut, 4-6 March 2025.
2025 — Keynote speaker at National Seminar CONCLAVE 2025: Integrated Advancements in Information Technology, Mathematical Sciences and Statistical Sciences, Kannur University, 27-29, May 2025.
2025 — Invited Speaker at International Conference on Advances in Statistical Methods, Data Science and Official Statistics, Shivaji University Kolhapur, 19-21, June 2025.
2025 — Invited Speaker at International Conference on Statistical Theory and Applications Trends. St. Joseph University, Bangalore. 18-19 July 2025.
2025 — Plenary speaker at International Conference on Global Advances in Statistical Modelling, Optimization Techniques and Data Science (IC-GASMOTDS-2025),M D University Rohtak, November 28-30, 2025.
2025 — Invited talk at International Conference on Statistical Methods in Finance, Chennai Mathematical Institute, 18 – 20, December 2025.
2025 — Invited Speaker at the Annual Conference of Indian Society for Probability and Statistics, VIT-AP University, 22- 24, December 2025.
2026 — Invited talk on ”Duration Models with Spliced Error Distributions” at the International Conference on Statistical Modeling, Simulation and Applications in Data Science held at CUSAT from 13-16, January 2026.
2026 — Gave three hour lectures in a National workshop on Time Series analysis Using Open-Source Software as a Resource person at Department of Statistics, veer Narmad South Gujarat University, Surat, 13-14 March 2026.
