Two days after three explosions rocked Mumbai, the Centre’s intelligence agencies — which have been examining various theories — suspect that a new module of the Indian Mujahideen called Bullet 313 might have carried out the attack.

The Enforcement Directorate on Monday rushed to Pune and took Mr Hasan Ali Khan into custody after the Supreme Court mounted pressure on the agency to take Mr Khan into custody for interrogation in relation to money-laundering and tax evasion cases. Sources confirmed that there is a high possibility of the ED invoking the Prevention of Money Laundering Act against Mr Hasan Ali. They are likely to inform the Supreme Court regarding his arrest on Tuesday morning.