In a volatile market with a clear bias towards the bears, you must differentiate between what is happening to the indices from what is happening fundamentally in the sector you are looking at investing in. If you do not do this, there is a high probability that you will end up missing something important. That something is what should influence your decision to buy or sell, and should have to do with what is happening in terms of the fundamentals of the sector, and not the movement of the Nifty and Sensex.
