The National Investigation Agency has filed an FIR into the murder of Amravati's pharmacist Umesh Kolhe. The country's top terror probe agency termed Kolhe's 'ISIS-sytle' murder an act of terror. The NIA FIR also says that the motive behind the murder was to terrorise a 'section of people'. Umesh was killed for backing suspended BJP spokesperson Nupur Sharma over the Prophet insult. Meanwhile, Amravati police has arrested a total of 7 people including mastermind Irfan Shaikh Rahim. Watch this video to know more.