Vaada raha... i promise is based on the story of hopeful doctors and a boy who is suffered from cancer.Duke Chawla, a successful doctor with a great love life. He is about to be married to but before he can settle down he meets with an accident and is paralyzed neck downwards.
The love of his life deserts him, as do his friends. The person who was once the epitome of hope is now angry and frustrated, with no will to live.
Enter Roshan, a little boy in the same hospital. He is stubborn, naughty and full of life. Though Duke and he get off on the wrong foot initially, they both develop a very special bond. The boy fills him with his own thirst for life and exuberance.