Sensex Rises Over 250 Points, Nifty Trades Above 17,700; NTPC, ONGC Among Top Gainers

New Delhi: The Indian equity benchmarks on Tuesday started trading in green led by gains across all sectors. Asian shares were mixed as Japan's Nikkei rose 1.38 per cent, South Korea's KOSPI fell 0.37 per cent and the Shanghai Composite index slipped as much as 0.61 per cent.