A row has erupted over the extension of the gap between two Covishield doses. Was the change made due to vaccine shortages or on scientific advice?

There was no dissenting voice among the members of the National Technical Advisory Group on Immunization (NTAGI), he said, according to a tweet by the Union health ministry.

Meanwhile, Union Health Minister Harsh Vardhan tweeted on Wednesday: "Decision to increase the gap between administering two doses of Covishield has been taken in a transparent manner based on scientific data. India has a robust mechanism to evaluate data. It's unfortunate that such an important issue is being politicised!"