The BSE Sensex lost nearly 64 points to close at 10,841 Wednesday. The index opened at 10,900, but was unable to sustain that level and slid as low as 10,784.42. Gainers included Dr. Reddy's ( RDY), the pharma major that shot up 9.6% to close at Rs 1489.35, HLL, up 1.6% to Rs 255.45, and Tata Motors ( TTM), higher by 1.3% to Rs 917.75. Other gainers were Satyam ( SAY), Cipla and Tata Power. Among the losers, L&T, the engineering and contruction major, slipped 3.2% to close at Rs 2387.30. REL was down 3% to Rs 613.65, and Maruti, the largest carmaker, fell 2.7% to Rs 847.25. Bajaj Auto, the largest motorcycle maker, fell 0.9%. Cement stocks were also weaker. ACC fell 1.6%, Gujarat Ambuja was down 1.2%, and Grasim fell 0.5%. Hindustan Petroleum, the oil company, gained 3.2% at Rs 326.30 on the news that the company is investing new funds for its retail expansion. The major part of the funding would be used to automate 560 retail outlets. Reliance Communication Ventures lost 6.3% to close at Rs 300.20 following the news that the company"s board has approved raising up to $500 million through a convertible bond sale.