While more than 1.37 crore people registered themselves on April 28, more than 1.04 crore registered by the end of April 29.
Vaccine manufacturers would make an advance declaration of the price for 50 per cent supply that would be available to state governments in the open market before May 1.
Citizens will be able to register and book an appointment for vaccination, anytime and anywhere, using the Co-WIN 2.0 portal or through other IT applications such as Arogya Setu.
In the initial phase, healthcare and frontline workers will be covered under the vaccination drive. They will be followed by those above 50 and people with comorbodities.