A year after the attacks, four accused, including Afzal Guru, were arrested for the attack and found guilty after a trial.
Political leaders will pay tributes to the nine people killed in the Dec 13, 2001 terror attack on Parliament.
The ceremony to honour Parliament attack victims becomes a ritual.
Bollywood's Most Popular 'Dahi Handi' Scenes
In Photos: The Asus Zenfone 3 With Glass-and-Metal Design
Enduring Images of Rio Olympics 2016
Monsoon Fury: Floods in Many Parts of North India
SRK to Priyanka Chopra: See What Celebrities Shared on Instagram This Week