• Composer : Pritam Chakravarty
• Lyricist : Amitabh Bhattacharya
• Singer : KK.( Krishnakumar Kunnath) K. K. Kay Kay

In pre-independence India, Laxman Singh Bisht is a mentally-challenged child, who, although defended by his younger brother Bharat is bullied by his friends, who call him "Tubelight". A montage shows them grow up, showing the time when Gandhi visits their school, India's independence in 1947, Gandhi's assassination and the death of their parents, which brings them closer as they grow up. In October 1962, the Chinese invade India, following which the Indian Army begins to set-up recruitment camps. From their village, only Bharat is selected and allotted the Kumaon Regiment. As they reach their post, war is declared and they come under heavy attack. Laxman anxiously waits for his brother to come back, running from post to post to find out about him. He meets a magician, Gogo Pasha, who shows him a magic trick by making him move a bottle without touching. Pasha tells Laxman that the secret is 'faith', and that faith can do anything. Oblivious to it, he tries to repeat the trick to his villagers but fails. A village elder, Banne says "Faith moves a mountain" and explains how Laxman will find his faith. Meanwhile, Bharat, while being evacuated after an injury, is ambushed and taken prisoner. He makes a plan with other prisoners to escape. Laxman observes a woman Le Leing and a boy Gu Won, take a home nearby. Judging them by their appearance, he considers them to be Chinese and tries to report them to the authorities. Banne gets angry, and advises him to follow the wisdom of Gandhi, and befriend the woman and boy. After some attempts, he succeeds in befriending them and learns that are Assamese and not Chinese. Meanwhile, Bharat's escape plan fails and his fellows are killed. He too is shot and finds himself unable to move. Having no hope of survival, he exchanges his shoes with another soldier who has torn his, to give him a chance to escape. The other guy however gets killed as well. Laxman learns of his brother's capture and becomes heartbroken, but Leing consoles him and encourages his faith. Laxman's friend, Narayan tries to attack Won, considering him to be Chinese, but is stopped by Laxman. He attempts to convince Laxman to not befriend Chinese people or he will lose Bharat forever; Leing tearfully tells them that they are Indians too. As Laxman tries to explain his belief in 'faith', Narayan challenges him to move a mountain; Laxman apparently succeeds as an earthquake is felt. With ceasefire declared, the Army begin bringing back corpses. They find a dead body, with Bharat's shoe-tag and declare him dead. Laxman is grief-stricken and believes that people were right about him now that Bharat has been killed. As the friends celebrate the end of the war, Leing's lost father returns. Leing and Gu comforts Laxman as they bid farewell to return to Calcutta. Laxman, still having little faith in him, learns of the mistake in identifying corpses due to the interchanged shoes. They receive the news that Bharat is still alive but has lost his memory. At the medical camp, Laxman is reunited with his brother who is able to recognize Laxman, possibly restoring his memory.

• Track 1 : Radio ( रेडियो )
• Track 2 : Naach Meri Jaan ( नाच मेरी जान )
• Track 3 : Tinka Tinka Dil Mera ( तिनका तिनका दिल मेरा )
• Track 4 : Main Agar ( मुख्य अगर )
• Track 5 : Kuch Nahi ( कुछ नहीं )
• Track 6 : Tinka Tinka Dil Mera(Version 2) ( तिनका तिनका दिल मेरा (संस्करण 2) )
• Track 7 : Kuch Nahi(Reprise) ( कुछ नहीं (दोहराव) )
• Track 9 : Kuch Nahi(Encore) ( कुछ नहीं (दोहराना) )
• Track 10 : Radio(Film Version) ( रेडियो (फिल्म संस्करण) )
• Track 11 : Kuch Nahi (Arijit Version) ( कुछ नहीं (अरिजीत संस्करण) )