The film starts off with the age-old formula of twin children being separated at birth after their father ( Sachin Khedekar) exposes a kingpin and his nefarious racket. The two children grow up to become Raja and Prem ( both Varun Dhawan) . While Raja grows up in the streets of Mumbai and becomes a street-smart guy, Prem is a music student who grows up in the comfortably luxurious life in London with his parents, who are not aware about the existence of Raja in India. Just as when Raja and his sidekick ( Rajpal Yadav) are living their life to the fullest under the divine protection of Lord Ganpati Bappa, situations take a U-turn which forces Raja and his sidekick to go to London.