The need for a second booster dose of Covid vaccine is not on the agenda of the government as of now, official sources said amid renewed concerns about the viral infections in view of surge in some countries. A fourth Covid shot is unwarranted at the moment as most people in the country are yet to receive their third dose, they said. Also, there is no data available on the utility of a second booster for the currently used vaccines, the sources said. India began administering a precautionary or booster dose in January 2022 and till now only 28 per cent of the eligible population have taken it.