Central Reserve Police Force (CRPF) personnel stands guard beside a bloodstained wall of the Parliament gate in New Delhi. (Reuters)

Delhi police positioned outside Parliament during the attack. (Express archive)

NSG commandos getting in action during the Parliament attack. (Express archive)

Security personnel during the attack at the Parliament. (Express archive)

Reunuka Chaudhary outside the Parliament just after the attack. (Express archive)

Parliament attack convict Mohammed Afzal Guru was today hanged in Tihar jail, New Delhi.

Bullets marks from the 2001 Parliament attack are visible still on the walls of the powerhouse of Indian politics.

A commando takes-up position besides a plain clothed policeman near the Parliament building in New Delhi on December 13, 2001. (Reuters)

People present inside the Parliament point to a suspected armed attacker inside the compound in New Delhi on December 13, 2001. (Reuters)

Policemen guard the street outside the Parliament in New Delhi on December 13, 2001. (Reuters)

Security forces run for cover in the Parliament compound in New Delhi on December 13, 2001. (Reuters)