Pharmaceuticals firm Biological E Ltd's COVID-19 vaccine,  Corbevax, became the first vaccine to be approved by the Drugs Controller General of India (DCGI) as a booster dose for the 18-plus age group.Amid confusion over the Maharashtra government's latest communication on the use of masks, Health Minister Rajesh Tope on Saturday said it was only an appeal and masks have not been made mandatory in the state. Coronavirus cases have been rising steadily in the state for the last few days. SoftBank-backed edtech unicorn Eruditus has become the latest edtech company to lay off employees as it looks to improve profitability. The company has let go off about 80 employees from its marketing and talent acquisition teams over the last one month, co-founder and chief executive officer Ashwin Damera told Moneycontrol. A judgment ordering liquidation of Siva Industries & Holdings has been tossed out by the Supreme Court with the observation that the bankruptcy appeals tribunal should have respected the creditors’ decision to settle with promoters as part of the debt resolution process.