The main mastermind behind the murder of Umesh Kolhe has been arrested in Nagpur. The accused has been identified as Irfan Khan, owner of an NGO from Nagpur, police said. <br /> <br />The 54-year-old chemist was stabbed to death in Amravati, Maharashtra, on June 21, and police suspected that the brutal murder in Maharashtra was after he wrote a post in support of Nupur Sharma on Facebook.
