Dewan Housing Finance Ltd (DHFL), the private sector mortgage lender, has reported a 59.86 jump in net profit at Rs 93.76 crore in the fourth quarter ended March 2012. Kapil Wadhawan, CMD of Dewan Housing Finance Ltd, told NDTV Profit that good volumes boosted their Q4 numbers. "We have seen a slowdown in the Mumbai market. We now have a plan to increase our book to Rs 75,000 crore by 2015," he added.