NEW DELHI: Shares of Minda Industries (up 14.17 per cent) and Marksans Pharma (up 10.42 per cent) closed Wednesday's session with gains of over 10 per cent even as equity markets ended lower.Stocks such as GVK Power Infrastructure (up 9.69 per cent), Sequent Scientific (up 8.46 per cent), Goldstone Infratech (up 7.94 per cent), M M Forgings (up 7.56 per cent) and IDBI Bank (up 6.51 per cent) pocketed gains of over 6 per cent.Key equity indices finished Wednesday's session with heavy losses.The Sensex index finished the day 306 points, or 0.88 per cent, down at 34,345, with 26 stocks incurring losses and only 5 with gains.The Nifty index tanked 106 points, or 1.01 per cent, to settle at 10,430, with 14 stocks in the green, 35 in the red and one unchanged.Shares of State Bank of India, Tech Mahindra, Cipla, UPL, Larsen Toubro and NTPC emerged as the top Nifty gainers of Wednesday's session.On the other hand, HPCL, Vedanta, Tata Steel, BPCL, ONGC and Indian Oil Corporation remained the top losers in the Nifty index.