It is situated at a separation of 87 km from Rameshwaram. Erwadi is situated on the ocean shore in the middle of keelakarai and Valinokkam. The town is well known for the place of worship of Hazrat Sultan Syed Ibrahim Shaheed Badusha Radiyallah Ta'ala Anhu. It is 800-year-old tomb of Sultan Ibrahim Syed Aulia who originated from Arabia by means of Cannanore. It is an eighteenth era inherited grandson of Prophet Muhammad. He was the lord of Madinah while he began towards India in mid twelfth century to spread Islam as indicated by the Prophet's desire. It is an image of religious concordance in Tamil Nadu. Individuals with otherworldly disease visit this durgah in substantial number and get cured. Travelers from ious states and nations visit this place. The 'sandanakoodu' celebration is to pay tribute to this Muslim holy person and happens in December consistently.