People in the 18-44 age group won't be able to get Covaxin shots in Delhi from Thursday as Deputy Chief Minister Manish Sisodia said that its manufacturer Bharat Biotech has refused to provide "additional" vaccine doses to the city government, a development that is likely to hamper the inoculation drive severely in the national capital.

Stocks of the other coronavirus vaccine --- Covishield, will last only nine days, AAP MLA Atishi said while releasing vaccination bulletin of the city.

As Covaxin's stock finished, the Delhi government temporarily closed down around 100 centres administering the vaccine on Wednesday.

The AAP MLA said that there are four days of Covaxin left for frontline workers and those above 45, while Covishield stock will last three days for such category.