New Delhi, Dec. 19 -- The National Investigation Agency (NIA) has arrested a "close associate" of Red Fort area blast perpetrator Umar-un-Nabi, taking the total number of arrests in the "white-collar terror module" to nine, officials said on Thursday.

The accused, Yasir Ahmad Dar, a resident of Shopian in south Kashmir, was nabbed from Delhi and placed under arrest under relevant provisions of the Unlawful Activities (Prevention) Act and the Bharatiya Nyaya Sanhita (BNS), the agency said in a statement.

"The 9th person to be arrested in the case, Yasir Ahmad Dar is a resident of Shopian, Srinagar. He was nabbed by the NIA from New Delhi and placed under arrest," an NIA spokesperson said.

According to the agency, investigations have rev...