New Delhi, March 16 -- The National Investigation Agency (NIA) has chargesheeted six accused for allegedly threatening witnesses in an attempt to derail the trial in the 2023 murder case of BJP leader Senthil Kumaran in Puducherry.

As per the agency, the accused Nithyanantham alias Nithi, Siva Sankar, Vengatesh, Ezhumalai, Heram alias TR alias Karthi, and Udhayakumar have been charged before a Special Court in Puducherry under provisions of the Bharatiya Nyaya Sanhita (BNS), Unlawful Activities (Prevention) Act (UAPA), and the National Investigation Agency Act.

Four of the accused--Nithyanantham, Siva Sankar, Vengatesh and Ezhumalai--had earlier been chargesheeted for their role in the main terror offence related to the killing of Kumar...