Automobile company Tata Motors, metals and mining major Vedanta, oil marketing firm Bharat Petroleum Corporation (BPCL), private sector IndusInd Bank, and two-wheeler major Bajaj Auto have witnessed their market cap slip below the Rs 1-trillion mark this year.

So far, nine companies have raised Rs 17,860 crore - nearly three times of last year's tally - by way of rights issues.

After a sharp sell-off in the past two months, overseas investors were once again seen turning bullish on Indian equities. FIIs bought shares worth Rs 63.5 billion in the past five sessions, their highest weekly investment tally in many months.