Shirish took early retirement in 2003 when he was posted at SDPO Panjim as Deputy Superintendent of Police. He served in Goa for over 10 years. His parents still stay in Goa as his father, MG Thorat, settled down in Goa after his retirement as Airport Director. Shirish studied at Cranfield University in UK and later was the chief investigator for Emirates Group in Dubai. Now based near New York in US, where he wrote the book. After ground research spread over the US, UK, Maldives, Bangladesh and a few undisclosed locations in the terror zone west of Afghanistan Thorat was sent on deputation to the Maharashtra police and worked on intelligence and counter terrorism operations and teamed with encounter specialist Sachin Waze who provided the ground level inputs for the book, on the 26/11 Operations and the police response.