India's drug controller Drugs Controller General of India(DCGI) has approved Serum Institute of India's 'Covishield' and Bharat Biotech's 'Covaxin' for restricted emergency use.This was informed by Dr VG Somani, the Drugs Controller General of India, in a press conference on Sunday.Serum Institute of India(SII) sought approval for the 'Covishield' vaccine developed by Oxford-AstraZeneca....