Mortgage lender Dewan Housing Finance Corporation (DHFL) on Friday increased its retail prime lending rate (RPLR) by 25 basis points to 17.75 per cent. The company had a loan portfolio of Rs 14,111.27 crore as of March 31, 2011. Dewan Housing’s move to increase the lending rate comes in the wake of a hike in the reverse repo and repo rates by the RBI recently.crackcrack