Greater Cochin Development Authority (GCDA) is the statutory body overseeing the development of the city of Kochi in the state of Kerala, India.Headquartered at Kadavanthra, GCDA oversees the development of the major part of Greater Cochin area which consists of the Kochi Municipal Corporation, surrounding municipalities (Thrippunithura, Thrikkakara, Aluva, Kalamassery, Maradu, Eloor, North Paravur, Angamaly and Perumbavoor) and 21 intervening panchayats (Chellanam, Kumbalangi, Cheranelloor, Varappuzha, Chennamangalam, Kadamakkudy, Kadungalloor, Alengad, Chengamanad, Nedumbassery, ezhikkara, Chottanikkara, Choornikkara, Edathala, Kumbalam, Kottuvally and others) covering an area of 632 km2.