The videography survey of the Gyanvapi Mosque in Varanasi, Uttar Pradesh, has led to a legal row with some questioning the constitutional validity of the move. The provisions of the 1991 Places of Worship Act have come into limelight after a civil court in Varanasi ordered the videographic survey of the Gyanvapi mosque complex located next to the Kashi Vishwanath temple in response to a petition by certain Hindu groups who claim the mosque was built by Aurangazeb after demolishing Hindu temples. After the survey on Monday, the counsel representing the Hindu side claimed that a Shivling was found close to the "wazookhana"-- a small reservoir used by Muslim devotees to perform ritual ablutions before offering the namaz.