Bharat Electronics’ Q1 net profit tumbled 84 per cent to Rs 19.32 crore year-on-year (Rs 122.8 crore). Total income decreased 11.5 per cent y-o-y to Rs 960.2 crore (Rs 1084.9 core) for the quarter ended June 30, 2011. The scrip closed nearly Rs 85 lower at Rs 1,146 on the Bombay Stock Exchange on Monday.