Geographic information system-based analysis of COVID-19 cases in India during pre-lockdown, lockdown, and unlock phases

•COVID-19 infections in India during pre-lockdown, lockdown, and unlock phases.•Implementation of Disaster Management Act as a control measure for the COVID-19 pandemic.•GIS analysis of COVID-19 spread in India at district, state, and country levels.•Contributions of top 25 and top 26–50 districts to the total COVID-19 cases in India.•Major pharmaceutical firms involved in the development of COVID-19 vaccines.