Progression of COVID-19 Pandemic in India: A Linear Functional Concurrent Regression Analysis Approach

  • Aalok Ranjan Chaurasia President, MLC Foundation, Bhopal, Madhya Pradesh, India.
  • Brijesh P Singh Professor, Department of Statistics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India.
  • Ravendra Singh Additional Director General (Retired), Central Statistics Office, Ministry of Statistics and Programme Implementation, Government of India, New Delhi, India.
Keywords: COVID-19, India, Functional Concurrent Regression Analysis, Estimation


Background: COVID-19 is a disasterous pandemic that the world has ever faced. It is affecting the global health system irrespective of race, ethnicity, environment, and economic status. This study is conducted with the aim of assessing the progression of the COVID-19 pandemic in India.

Methods: This article uses the functional concurrent regression analysis approach to describe the pattern of daily reported confirmed cases of COVID-19 in India. The approach provides an excellent fit to the daily reported confirmed cases of the disease. The data used in this study have been taken from

Results: Estimated value of the parameter Bk of the model is highly volatile. During the first phase of the pandemic which last up to 31st March 2020, value was very high. During 31st March to 19th July 2020 except for a few exceptions. Its value again increased rapidly from 17th February 2021 to 16th April 2021 and started decreasing after mid-March, 2021 and continued decreasing till present.

Conclusion: The data-driven approach used in this study is purely empirical and does not make any assumption about the progression of the pandemic or about the data. The article suggests that based on the parameter of the model, an early warning system may be developed and institutionalised to undertake the necessary measures to control the spread of the disease, thereby controlling the pandemic.

How to cite this article:
Chaurasia AR, Singh BP, Singh R. Progression of COVID-19 Pandemic in India: A Linear Functional Concurrent Regression Analysis Approach. J Commun Dis. 2021;53(4):15-22.



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