Located on the banks of the Ganges, Ahar is a small town in the Bulandshahar known for its ancient temples of Goddess Avantika and Lord Shiva. The temples draw devotees throughout the year, more specifically during the festivals of Shivratri and navratris.
Ahar is located on the banks of the river Ganga and traces its history to the Mahabharata period. There is a story in the epic which states that Duryodhana poisoned Bhima in order to kill him. He then threw Bhim into the Ganga River from where he floated to Ahar. The Nagvanshi rulers who ruled over Ahar took him out and cured him, after which Bhim returned to Hastinapur. Some coins belonging to the Nagvanshi period have been found here.