Nov 2 (Reuters) - Canada’s main stock index fell on Tuesday, weighed down by a more than 1% slide in both energy and healthcare stocks and caution ahead of the Federal Reserve’s meeting. At 9:32 a.m. ET (1332 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was down 24.38 points, or 0.11%, at 21,222.63. (Reporting by Amal S in Bengaluru)