May 11 (Reuters) - Canada’s main stock index fell at open on Tuesday, dragged down by energy stocks tracking a fall in oil prices as the rapid spread of COVID-19 infections in India raised concerns about demand. * At 9:32 a.m. ET (13:32 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was down 214.26 points, or 1.11%, at 19,147.62. (Reporting by Shivani Kumaresan in Bengaluru; Editing by Shinjini Ganguli) Our Standards: The Thomson Reuters Trust Principles.