Sensex, Nifty rise marginally; NTPC up 5%, ITC falls 2%

Sensex, Nifty rise marginally; NTPC up 5%, ITC falls 2% NTPC, Dr Reddy’s Labs, Bharti Airtel, ICICI Bank and Hindalco are top gainers in the Sensex. Among the losers are Vedanta, ITC, ONGC, Tata Motors and Infosys.