Intercepted at the arrival gate of a exotic country, accosted by grim "American agents", being bundled into a black SUV and interrogated for three hours as it drives around a foreign city, and having your mobile phone seized (and potential hacked into) - the hallmarks of a classic Hollywood spy thriller. However, according to the family of Nikhil Gupta - the Indian national accused of attempting to engineer the assassination of Gurpatwant Singh Pannun, a Sikh separatist and American-Canadian citizen - this is what happened to him after he landed at the Vaclav Havel Airport in Czechia's Prague on June 30.