more-inSuspected arms smuggler Malook, who is believed to have supplied firearms to those accused in the killing of an RSS leader in Punjab, was on Thursday arrested from the Uttar Pradesh-Delhi border, a senior police officer said. A joint team of the National Investigation Agency (NIA) and the U.P. The NIA is probing the killing of RSS leader Ravinder Gosain in Ludhiana. Singh, a team of Bhojpur police arrested Malook from the Delhi-U.P. So far, police have arrested five people — Malook, Nazir, Yusuf, Khalid and Naubahar, the SSP said.