Authorities believe the man coached the militants involved in the 2008 Mumbai attacks by phone from Pakistan.
Indian police have arrested a man suspected of helping to plan a militant rampage through the country's financial hub Mumbai in 2008 that killed 166 people, Foreign Minister S.M. Krishna said on Monday.
Indian-born Abu Hamza is a suspected member of Pakistan militant group Lashkar-e-Taiba (LeT), local media reported on Monday. New Delhi blames the group for the attacks that stunned India and shattered fragile relations with nuclear-armed neighbor Pakistan.
Authorities believe Mr. Hamza is the voice of a previously unidentified man who was taped speaking by phone from Pakistan to the militants involved in the Mumbai attacks. He is also said to have coached the attackers in speaking Hindi, according to the reports.
The 10 gunmen killed commuters, foreigners, and some wealthy Indian businessmen in the rampage, which included attacks on two luxury hotels, a Jewish center, and a train station.
Peace talks between India and Pakistan have resumed since the attacks, but New Delhi still suspects Islamabad of dragging its feet in bringing the perpetrators to justice, a charge Pakistan denies.