The Sensex was up 267 points and the Nifty was up 83 points. Dr Reddy Labs, ONGC, Hindalco and Hero MotoCorp were top gainers, while Maruti, BHEL, Axis Bank, Reliance and Adani Ports were top losers. Monsanto India shares fell 4% after a regulator ordered a probe into allegations of abuse of dominance. Cipla shares gained 2% after its UK arm acquired two US companies for over $230 million in revenue.