Ervadi or Erwadi (Tamil: ஏர்வாடி) is a village where the grave and shrine of Qutbus sulthan Syed Ibrahim Shaheed Badusha Radiyallh Ta'ala anhu, the then ruler of Madinah Al Munawwara is found. Erwadi is in Ramanathapuram district belonging to Kadaladi Taluk and Keelakarai Town panchayat. It also belongs to Kadaladi Assembly constituency which is a part of Ramanathapuram (Lok Sabha constituency). But after the delimitations in 2009, Ervadi has been joint to Ramanathapuram assembly constituency. Though being a small town, Ervadi is the second largest contibutor for the revenue of Ramanthapuram District.