Market analysts and brokerage firms identified top high-conviction stocks that investors can buy as Indian markets tumble amid the Middle East war. They picked Bharat Electronics (buying in the ₹450-454 range), ONGC (₹278-283), Oil India (₹488-520) and Hindalco Industries (with a stop loss at ₹925). They also picked MTAR Technologies (with ₹3,900 target) and Hindustan Zinc (with ₹650 target).