Students have temperature checked before entering classroom on the first school day at Agartala, the capital city of India's northeastern state of Tripura, Dec. 7, 2020. Tripura government has allowed schools to function from Monday with strict adherence to the norms issued by the Ministry of Health and Family Welfare in view of the pandemic. (Str/Xinhua)

Students wearing masks have class on the first school day at Agartala, the capital city of India's northeastern state of Tripura, Dec. 7, 2020. Tripura government has allowed schools to function from Monday with strict adherence to the norms issued by the Ministry of Health and Family Welfare in view of the pandemic. (Str/Xinhua)

Students have temperature checked before entering classroom on the first school day at Agartala, the capital city of India's northeastern state of Tripura, Dec. 7, 2020. Tripura government has allowed schools to function from Monday with strict adherence to the norms issued by the Ministry of Health and Family Welfare in view of the pandemic. (Str/Xinhua)

Students wearing masks have class on the first school day at Agartala, the capital city of India's northeastern state of Tripura, Dec. 7, 2020. Tripura government has allowed schools to function from Monday with strict adherence to the norms issued by the Ministry of Health and Family Welfare in view of the pandemic. (Str/Xinhua)