American-born Roshan (Abhishek Bachchan), who brings his ailing grandmother back to India. Little does he know that the quick trip will turn into the longest journey of his life - a journey within.

The backdrop of the story is the ancient walled city of Delhi, a character in herself. She represents the chaos, religion, beliefs and ethos of the Indian people. The pin code of the city is 110006, and with pride of love they call her Delhi-6.