Correct Answer: 2 [Covaxin]

Notes:
India released a commemorative postal stamp on Covid-19 vaccination to mark the first anniversary of the country’s national immunization programme.
The stamp shows a health worker inoculating a senior citizen with Covaxin. Within a span of one year, India has administered more than 156 crore doses. Covaxin was developed by Hyderabad-based Bharat Biotech in collaboration with the Indian Council of Medical Research (ICMR).