Haryana's most legendary fair is held in honour of the goddess of small-pox, Masani whose temple is in Gurgaon village. There is a legend about this temple. There was a temple, holy to the goddess Devi, locally known as Masani at the village of Kesopur in the Delhi district. Some two hundred and fifty years ago according to tradition, the Goddess appeared in a dream to one Singha, a Jat of some influence and a resident at the village of Gurgaon. The Devi communicated to Singha that she wished to leave Kesopur and directed him to make a holy place for her in his village. At the same time, she authorized the fortunate Singha to appropriate all the offerings at her shrine. The orders of the goddess were promptly carried out. The temple was built and flourished, its fame spreading far and wide. A visit to the shrine is an antidote for small-pox and women from great distances flock to it with their children to obtain this benefit. The greatest crowd is in April-May but all the year around steady stream of people flows, Monday being the favourite day. Singha and his heirs enjoyed the offerings for two hundred years.