Fusion Microfinance Tuesday said it has raised Rs 520 crore in a series E investment round from global private equity (PE) firm, Warburg Pincus. The investment round includes both a primary fund raise and a secondary sale by early-stage investors, the company said in a release. Creation Investment, an existing investor, also participated in this round. Early investors, Incofin, NMI ,BIO and Sidbi have made a successful exit, the release said. This fund raise follows an internal round that the microfinancier completed in February 2018.