The 26/11 Mumbai attacks mastermind Zakiur Rehman Lakhvi was released on bail by a Lahore court on Friday. The court ordered Lakhvi's release on grounds that his detention was illegal.
Lakhvi was jailed under the 'Public Order Act', and his release had earlier been suspended twice, reports NDTV.
Back in India, home minister Rajnath Singh called the move disappointing.
Lakhvi was released late last night and taken to an unknown location.
Ministry of Home Affairs said that Lakhvi's release was an insult to the victims of the Mumbai attacks and termed the move as a serious setback, adding that the world should take note of what has happened.
Meanwhile, Manish Tewari of Congress called Lakhvi's release an abject failure of the Modi government.
The Mumbai terror attacks carried out on 26 November 2008 left 166 people dead.