The National Investigation Agency (NIA) on Tuesday filed its first charge sheet against 12 people, found to having links with pro-Khalistan outfits and Pakistan-based conspirators, in one of the three terror-gangster nexus cases being probed by the agency.

The agency is investigating 10 more people for their alleged role in the terror conspiracy, including plans to eliminate certain leaders, singers and businessmen to terrorise people, extort money from them and create a sensation, a spokesperson of the federal agency said.