The 30-share Sensex ended down 35 points at 26,349 and the 50-share Nifty ended down 20 points at 7,864.
BSE Mid-cap and BSE Small-cap lost 2.5% and 3.1% after oil prices soared
The 30-share Sensex gained 321 points to end at 26,430 and the 50-share Nifty surged 100 points to end at 7,879.
Sensex ended above 26,000 led by telecom shares amid TRAI's spectrum sharing norms.
John Elliott, the author of Implosion: India's Tryst with Reality, on his Riding the Elephant blog, says the sacking of Cyrus Mistry as chairman of Tata and Sons was in line with Ratan Tata's personal style of dealing with executives
'No PM has said no to anything we have proposed. I am not a politician and I cannot give speeches about things, but a lot of good things have been done in science by previous governments.' 'Under Dr Manmohan Singh, we could do a few important things. I used to meet him once in 6, 8 weeks. He often said, 'Professor Rao, you assume that you have my approval and carry on.' He was shy and decent. He is a real gentleman.' 'Science keeps me going at 80. I feel young.' Professor C N R Rao, the eminent scientist who was honoured with the Bharat Ratna, on the state of science in India.