New Delhi, Oct. 6 -- The National Investigation Agency (NIA) has filed a charge sheet against four people, including pro-Khalistan operatives, for the alleged involvement in a grenade attack at former Punjab minister Manorajan Kalia's residence in Jalandhar in April this year, the agency said on Sunday. The charge sheet has been filed against two arrested persons -- Saidul Ameen from Amroha and Abhijot Jangra from Kurukshetra, and two absconders -- Kulbir Singh Sidhu from Yamunanagar and Manish alias Kaka Rana from Karnal, before a Chandigarh court on Saturday. The attack on the premises of the former minister and Bharatiya Janata Party (BJP) leader was carried out on the night of April 7. The federal anti-terror probe agency took over the probe into the attack on April 12. Sidhu, an operative of Babbar Khalsa International (BKI), along with his associate Manish, had formed a gang to target prominent leaders of Punjab to create a climate of fear and raise funds for the pro-Khalistan organisation, NIA said in a statement. "Manish had subsequently recruited Ameen, who had hurled the grenade at the former minister's house. The grenade was supplied to Ameen by Sidhu, while Jangra provided the funds," it said. NIA had earlier chargesheeted Sidhu in a case related to the killing of Punjab-based Vishwa Hindu Parishad (VHP) leader Vikas Prabhakar in April 2024....