The Serum Institute of India's Covishield vaccine, which has got approval from the country's drug regulator, will be commercially available at Rs 1,000 per dose if the government allows sale in retail, company chief Adar Poonawalla has said. For the government, "We are giving it in a very special price of Rs 200 for the first hundred million doses. Then there will be tendering and then different prices will be available," Mr Poonawalla told NDTV.