Mumbai: Some large banks have backed off from foreign exchange swap deals they had entered into, or were about to undertake, after sensing that such transactions would not go down well with the Reserve Bank of India (RBI).The banks, using the easy rupee liquidity created after the inflow of deposits from the diaspora, bought dollars and invested the funds in US Treasury bills to earn higher returns.8 lakh staff in cybersecurityThe transaction involved a buy-sell swap, where banks purchased dollars in the spot market and sold dollars in the forward market.