Gaya is a city in Bihar, India, and it is also the headquarters of Gaya District. Gaya is 100 kilometers south of Patna, the capital city of Bihar. Situated on the banks of Flag River (Niranjana, as mentioned in Ramayana), it is a place sanctified by both the Hindu and the Buddhist religions. It is surrounded by small rocky hills (Mangala-Gauri, Shringa-Sthan, Ram-Shila and Brahmayoni) by three sides and the river flowing on the fourth (western) side. The city has a mix of natural surroundings, age old buildings and narrow by lanes. Gaya was a part of the ancient state Magadha. Gaya derives its name from the mythological demon Gayasur (which literally means Gaya the holy demon), demon (asur, a Sanskrit word) and Gaya. Over its history dating millennia, the word asur got deleted and the name Gaya remained in currency. Lord Vishnu killed Gayasur, the holy demon by using the pressure of his foot over him. This incident transformed Gayasur into the series of rocky hills that make up the landscape of the Gaya city.

Gaya was so holy that he had the power to absolve the sins of those who touched him or looked at him; after his death many people have flocked to Gaya to perform shraddha sacrifices on his body to absolve the sins of their ancestors. Gods and goddesses had promised to live on Gayasur's body after he died, and the hilltop protuberances of Gaya are surmounted by temples to various gods and goddesses. These hilltop temples at Rama Shila, Mangla Gauri, Shringa Sthan and Brahmayoni are part of the pilgrimage circuit, and grand staircases have been built up to most of them.