After two decades, during the reign of Sree Chithira Thirunal, Thiruvananthapuram Municipality was converted into Corporation on 30 October 1940, making it the oldest Municipal Corporation of Kerala.[64] The first Municipal Corporation founded after the independence of India as well as the second-oldest Municipal Corporation of the state is at Kozhikode in the year 1962.[65] There are six Municipal corporations in Kerala that govern Thiruvananthapuram, Kozhikode, Kochi, Kollam, Thrissur, and Kannur.[66] The Thiruvananthapuram Municipal Corporation is the largest corporation in Kerala while Kochi metropolitan area named Kochi UA is the largest urban agglomeration.[67] According to a survey by economics research firm Indicus Analytics in 2007, Thiruvananthapuram, Kozhikode, Kochi, Kollam, Thrissur are among the "best cities in India to live"; the survey used parameters such as health, education, environment, safety, public facilities and entertainment to rank the cities.[68]