Sundar Singh was born into a Sikh family in the village of Rampur Kataania, Ludhiana (Punjab state) in northern India. Sikhism, founded about 1500 AD, is a religion that teaches belief in one God and rejects the caste system; it had become one of the established religions in the area, standing apart from both Hinduism and Islam. Sundar Singh's mother took him to sit at the feet of a sadhu, an ascetic holy man, who lived in the jungle some miles away, while also sending him to Ewing Christian High School, Ludhiana, to learn English.
The death of Sundar Singh's mother, when he was fourteen, pitched him into violence and despair. He took out his anger on the missionaries, persecuted Christian converts, and ridiculed their faith. In final defiance of their religion, he bought a Bible and burned it page by page in his home while his friends watched.