Kottaiyur is a Northern Neighborhood of Karaikudi city in Sivaganga district. Formerly, it was a Town panchayat until getting included into Karaikudi City Municipal Corporation. It's the most populous and a well-developed neighborhood or inner-core suburb of Karaikudi. It is known for its Kottaiyur Sivan Temple, one of the master pieces of the Chettinad region. The temple and the area's old lime stone heritage buildings give Kottaiyur a unique identity. Kottaiyur is well developed and famous for its reputed educational institutions. Kottaiyur panchayat administration including the villages of Velangudi and Alagapuri.