16 January, the Centre on Sunday held a virtual meeting with states and union territories on the Covid-19 Vaccine Intelligence Network (Co-WIN) software - the backbone of the last mile vaccine administration.Co-WIN has been developed as an extension of the electronic Vaccine Intelligence Network (eVIN) module for it to be a comprehensive cloud-based IT solution for planning, implementation, monitoring, and evaluation of covid-19 vaccination drive in India.The meeting was chaired by Ram Sewak Sharma, chairman, Empowered Group on Technology and Data Management to combat covid-19 and member, National Expert Group on Vaccine Administration of covid-19.