Abu Hamza, also known as Sayed Zabiuddin, an Indian-born member of the Pakistani militant group Lashkar-e-Taiba, was detained at Delhi international airport on June 21 when he arrived from the Middle East.

Indian police believe he was one of the handlers based in the Pakistani city Karachi, who issued orders by telephone to 10 Islamist gunmen as they stormed two luxury hotels, a Jewish center, a restaurant and a train station in Mumbai.

The November 2008 attacks, which India has blamed on Lashkar-e-Taiba, left 166 people dead and more than 300 wounded.

Home Minister P. Chidambaram, speaking to reporters in the southern state of Kerala, said police interrogation of Hamza had confirmed Indian accusations that Pakistani state actors were also involved.

“The argument that non-state actors were behind the massacre is no longer valid. He has confirmed that he was in the control room (and) this has confirmed our suspicion that there was some organised effort,” Chidambaram said.

“When I say, state actors, at the moment, I am not pointing my finger at any particular agency.

“But clearly there was state support or state actors’ support for the 26/11 massacre,” the home minister said.

Pakistan has asked India to share information on Hamza and has urged New Delhi to refrain from blaming Islamabad

Pakistan, which has firmly denied allegations that state actors were involved, has indicted seven people for their alleged role in the attacks. Their trial, which began in 2009, has been beset by delays.

The United States has offered a $10 million reward for information leading to the conviction of Lashkar founder Hafiz Saeed who lives openly in Pakistan and is accused of masterminding the Mumbai attacks.