His most notable feat, carried out in 1837, was to survive burial underground, without food or water, for forty days.
This feat was said to have taken place at the court of the Maharajah of the Punjab, Ranjit Singh, at Lahore, India (now in Pakistan).
His apparently lifeless body was washed with hot water, massaged, and ghee placed on his eyelids and tongue; in a short time, he had recovered.
[1][2] According to Claude Wade, the British Resident at the Maharaja's court: "From the time of the box being opened to the recovery of the voice, not more than half an hour could have elapsed; and in another half-hour, the Fakir talked with myself and those about him freely, though feebly, like a sick person.
"[3] The report suggests hibernation as explanation and "regretted that no exact weights of Haridâs were noted before and after the burial".