A man accused of helping to plan a terror attack in India that killed 166 people has been extradited to New Delhi from the United States.
Tahawwur Hussain Rana, a Pakistan-born American businessman and Canadian citizen was sent to India after he "exhausted all legal avenues", India's National Investigation Agency said.
He was extradited in connection to the 2008 Mumbai terror attacks, which saw ten heavily-armed attackers target locations across the city including luxury hotels, a Jewish centre and the main train station over four days.
Some in India refer to the attacks as 'India's 9/11'.
Indian authorities accuse him of conspiring with the terrorists and providing them with information needed to carry out the attacks.
He has previously denied similar claims in US courts.
He arrived in New Delhi accompanied by Indian security agencies, after his petitions challenging the extradition were rejected by the US Supreme Court.
US President Donald Trump announced Rana's transfer earlier this year at a joint press conference with Indian Prime Minister Narendra Modi in Washington.
Rana was sentenced to 14 years in prison in the US in 2013 for providing support to Lashkar-e-Taiba, the Pakistani Islamist group that India says was responsible for the Mumbai terror attacks.
"As far as our record indicates, he (Rana) did not even apply for renewal for his Pakistani-origin documents for the last two decades," Shafqat Ali Khan, a spokesperson for Pakistan's foreign ministry, said at a media briefing on Thursday, local time.
Pakistan denies supporting extremist groups.
Rana's lawyer has said that Rana was a "good man and got sucked into something."
Rana was also found guilty in June 2011 of conspiring to attack a Danish newspaper, a plot hatched by the militant group that was never carried out.
Reuters/ABC