Indian markets opened with losses amid high volatility during opening bells on Wednesday. Only Oil & Gas out of all the sectoral indices on the NSE edged higher. On the BSE Sensex, the sectors trading in green are Realty, Energy, Oil & Gas, and Information Technology. Stocks of Britannia Industries jumped 5.50 per cent to Rs 3452.60, as it reported a 4.3 per cent rise in consolidated net profit to Rs 379.87 crore.