India will seek extradition of Dubai-based underworld don Aftab Ansari who claimed the responsibility for Tuesday`s attack on the American Center in Kolkata once security agencies completed the investigation, Minister of State for External Affairs Omar Abdullah said on Thursday.
"Government will request UAE authorities to extradite Ansari since India has an extradition treaty with them," Abdullah said.

He said that a home ministry team was already in Kolkata to gather evidence against Ansari to make a "water-tight case" against the fugitive who hails from Varanasi.

Aftab Ansari alias Aftab Ahmed alias Farhan Malik was based in Dubai. An FIR number 73/99 under Section 365 (kidnapping) of Indian Penal Code has been registered against Ansari by Varanasi police. Ansari was cultivated by Pakistan`s ISI in early 2000 for supporting covert operations in India and introduced to Omar Sheikh, a HuJI leader. He indulged in kidnapping of Kolkata`s shoe baron Partha Paritam Roy Barman who was released after receiving a ransom of Rs 37.5 million in Dubai through hawala channels. Out of this amount, Omar Sheikh, one of the three militants released by India for the safety of hostages on board the hijacked Indian Airlines plane in Kandahar, had sent $100,000 through telegraphic transfer to Mohammed Atta, leader of the hijackers who rammed planes into WTC in New York and the Pentagon in Washington on September 11. Bureau Report