Indiabulls Housing Finance Limited raised Rs. 441 crore by selling a portion of its stake in OakNorth Holding Ltd to US-based Riva Capital Partners. The deal comes a month after Indiabulls sold a portion of its stake in OakNorth Holding Ltd to HighSage Ventures LLC for Rs. 440 crore. The housing firm has raised a total of Rs 2,273 crore as fresh equity in September and October through sale of stake and institutional placement.