Realtors' apex body Credai on Thursday requested the RBI not to increase the repo rate in the upcoming monetary policy as this would raise the borrowing cost of builders and customers, impacting housing sales. With retail inflation remaining above the comfort level of 6 per cent and most global peers, including the US Fed, continuing their hawkish stance, industry experts feel the Reserve Bank of India may go in for a 25 basis points hike in the bi-monthly monetary policy to be announced on April 6.