Sharif told Dawn News: “Militant organisations are active. Call them non-state actors, should we allow them to cross the border and kill 150 people in Mumbai? Explain it to me. Why can’t we complete the trial?”

India has been for longtime accused Pakistan-based Lashkar-e Taiba as responsible for the attack.

The 2008 Mumbai attacks were twelve coordinated shooting and bombing attacks across Mumbai by members of Lashkar-e-Taiba (LeT).

Ajmal Kasab, the only attacker who was captured alive, later confessed upon interrogation that the attacks were conducted with the support of Pakistan's Inter-Services Intelligence (ISI). Kasab was hanged on Nov 21, 2012 at Yerwada Jail in Pune.

The attacks, which drew widespread global condemnation, began on Wednesday, Nov 26, 2008 and lasted until Saturday, Nov 29, 2008, killing 164 people and wounding at least 308.

Eight of the attacks occurred in South Mumbai - at Chhatrapati Shivaji Terminus, the Oberoi Trident, the Taj Mahal Palace & Tower, Leopold Cafe, Cama Hospital (a women and children's hospital), the Nariman House Jewish community centre, the Metro Cinema, and a lane behind the Times of India building and St. Xavier's College.

There was also an explosion at Mazagaon, in Mumbai's port area, and in a taxi at Vile Parle.