Gurgaon-based solar rooftop startup, ZunRoof, has raised an undisclosed sum in the third round of angel funding from angel investors including Ramakant Sharma, Founder of Livspace and Arun Diaz of IntelleGrow along with the lead investors of ZunRoof's previous round, Pradeep Tharakan, Gaurav Gupta, Vismay Sharma and