New Delhi, April 6 -- The National Investigation Agency (NIA) has launched an investigation into a Pakistan-backed conspiracy to smuggle arms and explosives in India with an intention to carry out blasts in Delhi, Punjab and other parts of the country, people familiar with the development said. An operative of the ISI, who goes by the name of Jasvir Chaudhary, was running the terror module and sent arms and IEDs for this plan via Indo-Pak border through drones in February this year, they said. P2...