A cop, investigating the mysterious death of a filmstar, meets a sex-worker, while he faces some personal problems psychologically. The mystery connects these people in a way, that ultimately changes their lives.

Events in India’s history — from the Emergency to the famous Cricket World Cup win and the Bombay riots — unfold through the perspective of an innocent Sikh man Laal Singh Chaddha, a person with a low IQ.

The film begins in 1857, when India was ruled by the British East India Company. Mangal Pandey is a sepoy, a soldier of Indian origin, in the army of the East India Company. Pandey is fighting in the Anglo-Afghan Wars and saves the life of his British commanding officer, William Gordon. Gordon is indebted to Pandey and a strong friendship develops between them, transcending both rank and race.

Ishaan Awasthi is an eight-year-old whose world is filled with wonders that no one else seems to appreciate. Colours, fish, dogs, and kites don’t seem important to the adults, who are much more interested in things like homework, marks, and neatness. Ishaan cannot seem to get anything right in class; he is then sent to boarding school, where his life changes forever.

Choices – to choose between right or wrong is simple, but what defines one’s life is the decision between the greater of two goods or the lesser of two evils. This is the advice that Zooni Ali Beg (Kajol) receives from her father just as she is about to venture out into the world of her own for the very first time. Little does she know that these very words will shape her life. Zooni, a blind Kashmiri girl, meets Rehan Qadri (Aamir Khan), a local Delhi tour guide and an incorrigible flirt. Her friends warn her against this good-for-nothing roadside Romeo, but she chooses to ignore them. It is now her time to discover life and love. Is this really the right choice? Rehan is fascinated by Zooni and wants her to see life as it should be seen, in its many colours. He promises her that the time spent with him will be the most precious in all her life. Zooni sees Delhi, life and love like she never has before, because of Rehan. What Zooni doesn’t know is that Rehan has another side of his … Ali Beg is a blind Kashmiri girl who travels without her parents for the first time with a dance troupe to Delhi to perform in a ceremony for independence day. On her journey, she meets Rehan Khan, a casanova and tour guide who flirts with her. Although her friends warn Zooni about him, she cannot resist falling in love with him and he takes her on a private tour of New Delhi. But there is more to Rehan than meets the eye and Zooni will have to make a heartbreaking decision.