The National Investigation Agency on Tuesday recovered Rs 27 lakh from the wife of Niki Sumi, a leader of banned Nagaland insurgent group National Socialist Council of Nagaland (Khaplang). This comes as the Centre’s interlocutor RN Ravi began talks with representatives of six Naga national political groups.

The investigation agency said Shelly Sumi and three others extorted government servants. They were allegedly going to send the money to NSCN(K) camps in Myanmar “to fund activities prejudicial to the sovereignty and integrity of India”, the agency said in the press release. They also found incriminating documents about the banned group in the houses searched in Dimapur.

The Dimapur Police said there was no official intimation but claim they were aware of the raids.

The searches come days after four Nagaland government officers were arrested for allegedly funding the insurgent group with money from the state exchequer.