Jammu, Feb 18 (IANS): The National Investigation Agency (NIA) on Friday arrested its former Superintendent of Police, Arvind Digvijay Negi for allegedly leaking secret documents to an overground worker of the banned Lashkar-e-Taiba (LeT).

The NIA spokesperson said that Negi, a police officer who was promoted to the IPS batch of 2011, was arrested in connection with a case registered by the NIA on November 6 last year.

The case pertains to the spread of a network of over ground workers (OGWs) of the banned LeT for providing support in planning and execution of militant activities in India.

The NIA had earlier arrested six people in the case.

"During investigation, the role of A.D. Negi, IPS, SP posted at Shimla (since repatriated from NIA) was verified and his houses were searched.

"It was also found that official secret documents of the NIA were leaked by A.D. Negi to another accused person who is an OGW of LeT in the case," the spokesperson said.