The Reserve Bank of India's recent measures to encourage overseas fund raising could reduce banks' borrowing costs through the external commercial borrowing (ECB) route by 2-2.5 per cent, while supporting liquidity and foreign currency inflows, according to a report by Motilal Oswal Financial Services.The brokerage said the RBI's concessional USD/INR swap facility for ECBs and overseas foreign currency borrowings (OFCBs) would significantly lower hedging costs, enabling banks to access overseas funds at cheaper rates.“The borrowing cost for banks via the ECB route is expected to fall by 2-2.50 per cent, which will enable the system to raise resources while keeping funding costs under control,” Motilal Oswal Financial Services said in the report, as quoted PTI.According to the brokerage, the central bank's measures relating to ECBs and Foreign Currency Non-Resident (Bank) [FCNR(B)] deposits are likely to strengthen forex reserves, improve systemic liquidity and provide temporary relief to lenders facing pressure on deposit mobilisation.The report said the revised framework offers attractive economics for both depositors and banks under the FCNR(B) scheme.It estimated that customers could earn returns of 15-26 per cent on leveraged deposits, while banks may generate around 0.65 per cent of additional spreads by deploying such funds, making it a "win-win proposition".The brokerage also noted that several banks have already increased FCNR(B) deposit rates in the three-to-five-year maturity bucket to 6-7 per cent to attract inflows after the RBI opened a special swap window valid until the end of September