The Serum Institute of India has offered two crore doses of Covishield vaccine to the central government free of cost amid a rise in COVID-19 cases in some countries, official sources said on Wednesday. Uzbekistan has claimed that at least 18 children in the country have died after allegedly taking an India-manufactured cough syrup. Eight people -- one of them a woman -- died in a near-stampede in Nellore district of Andhra Pradesh, during a roadshow by the state's former Chief Minister Chandrababu Naidu.