Events in India's history — from the Emergency and the famous Cricket World Cup win to the Punjab riots — unfold from the perspective of an innocent Sikh man Laal Singh Chaddha, a person with a low IQ but high optimism. Laal is able to achieve everything under the sun but his childhood love continues to elude him.
After the hijacking of IC-814 in 1999 and the Parliament attack in 2001, India’s Intelligence Bureau Chief, Ajay Sanyal devised an indomitable mission to intrude and rupture the terrorist network in Pakistan, by infiltrating the underworld mafia of Karachi. A 20-year-old boy from Punjab, held captive for a revenge crime, is identified by Sanyal to execute his elaborate plan.