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.
Aamir Khan
as Laal Singh Chaddha
Kareena Kapoor Khan
as Rupa D'Souza
Naga Chaitanya Akkineni
as Balaraju Bodi
Mona Singh
as Gurpreet Kaur (Laal's mother)
Manav Vij
as Mohammad bhai
Kamini Kaushal
as Old lady on train
Ahmad Ibn Umar
as Young Laal
Hafsa Ashraf
as Young Rupa
Gitikka Ganju Dhar
as Manjeet maasi
Rohaan Singh
as Aman Chaddha
Shah Rukh Khan
as Shah Rukh Khan
Aarya Sharma
as Lady in train