Kallur, located at the centre of the Khammam District, is renowned for its 400 year old history. The Lord Venu Gopala Swamy temple, constructed by Queen Rudrama Devi, is one of the major Hindu pilgrimage sites of the region. This region was once the taluka headquarters of the Qutub Shahis.
The ancient Shiva temple at this site was built by Prathapa Rudra, a Kakatiya king. Five Shivalingas are situated in the inner sanctum of this temple. Before worshipping the god, devotees take a bath at the tank situated within the temple premises.