Wage hikes and rupee depreciation may affect the business.
FIIs have been strong buyers of shares since last year until a recent streak of selling.
The intervention was spotted when the rupee hit 59.90 to the dollar or below
Heightened volatility makes the debt rollovers difficult.
Traders said the rupee was also supported by speculation that May wholesale inflation due this week may show continued easing.
The RBI said it had not found initial evidence of money laundering against the three banks.
DLF, which builds homes, offices and shopping malls, has lost about 61 per cent of its value since listing on the stock exchange in 2007, underperforming the wider market.
The company stock ended up 4.49 per cent.
The majority view remains for the central bank to leave the cash reserve ratio unchanged at 4 per cent.
Shares were also buoyed by positive global sentiment on hopes major central banks will ease monetary policy further or continue to keep it loose for long.
In a landmark judgment that has the potential to change the direction of India's pharmaceutical business, the Supreme Court said on Monday that the drug failed to qualify for a patent according to Indian law.
The buyer received poor investor response to the pricing of the share sale.
Wipro and HCL Technologies among its top picks.
Says the TRC proposal was clumsily worded.
It doesn't point out weakness that is being reported.
Expected cut in withholding tax for debt investments.
India taxes these investors higher and is excessively cautious towards derivatives.
India will soon allow corporate houses to open banks despite misgivings within the RBI.
BofA Merrill also upgrades its price objectives for private banks, retaining ICICI Bank Ltd as its top pick, and HDFC Bank Ltd and Axis Bank Ltd as its 'preferred' names.
CEO Rana Kapoor said no such discussion or proposition has ever transpired.