According to Jin10, India's central bank introduced a series of measures to support the rupee, including a dedicated foreign-exchange window to supply dollars to state-owned oil companies. The special window will start on Monday and is designed to meet all daily dollar needs of three state-owned oil companies. Under the mechanism, India's central bank will sell dollars to these oil companies through designated banks. It also introduced other regulatory measures, including a ban on re-registering any foreign-exchange derivative contracts involving the rupee that were previously canceled. The central bank said the transaction threshold for hedging existing contract exposures without proving the existence of the underlying asset has been cut from the equivalent of $100 million to $5 million. It also introduced a foreign-exchange risk reserve requirement, under which banks must deposit cash with the central bank equal to 20% of the rupee-equivalent notional amount for each transaction above $2 million.