Hilsa is a sub-division of the Nalanda district in the Indian state of Bihar well known as a centre of Buddhist knowledge. Located approximately 40 kilometres (25 mi) south-east of the state capital Patna, the area was an important hub during the Indian independence movement and produced many freedom fighters. Hilsa is a historical city.
Hilsa is located at  and has an average elevation of 45 metres (148 ft).
There are many government and private school in hilsa who plays vital role in education.
Hilsa is located on the branch line connecting Fatuha and Tilaiya via Islampur. The town is served by a direct daily superfast train to New Delhi (Magadh Express).And a express train also runs from ISLAMPUR to HATIA daily