Perunthanni  Perunthanni is a suburb of Thiruvananthapuram, the capital of the Indian state of Kerala. This place is situated on Vetti Muricha Kotta-Westfort-Enchakkal Road. It is located at. Perunthanni surrounded by Palkulanagara, Eanchakkal and Sreekanteswaram. The population of Perunthanni mainly practices Hinduism.