New Delhi, April 10 -- Tahawwur Hussain Rana, a 'key conspirator behind 2008 mayhem' was successfully extradited, said the National Investigation Agency (NIA) on Thursday, as a special flight carrying 26/11 Mumbai terror attacks mastermind arrived in Delhi.

Rana has been accused of being involved in the 2008 Mumbai terror attacks, in which over 160 people were killed.

Rana has been brought to India after his last-ditch attempt to evade extradition failed as the US Supreme Court justices rejected his application.

166 people were killed after a group of 10 Pakistani terrorists went on a rampage on November 26, 2008, in a co-ordinated attacks in the financial capital.

The National Investigation Agency (NIA) on Thursday successfully secur...