Seeking to protect investor returns from excessive exchange rate movements, Reserve Bank of India governor Raghuram Rajan has said a move towards an inflation target of 4 percent will help contain currency market volatility.He said the aim of macro stabilisation is to make the exchange rate less and less an issue that investors have to worry about. Speaking at an industry event in Mumbai, the RBI governor also stressed on the need to make the country's banking system more vibrant, and said steps are being taken in this regard. On the overall economy, he pitched for creating a business environment which will allow business enterprises to go where they desire to go.