Tiruchirappalli, also known as Trichy, is one of the largest cities in Tamil Nadu and is known as an important trade, education and pilgrimage centre. The famous Sri Ranganatha Swamy temple is located in the city, which attracts lakhs of tourists every year (TCC, 2015).
The population of city as per the 2011 Census is 916,857. The density of city is 5,483 persons per sq.km which is very high when compared to state average of 515 persons per sq.km. Total slum population is 228,518 which is 26% of the total population (Census of India, 2011).
Municipal boundary has been chosen for the current study. It comprises of an area of 159 sq.km (TCC, 2015).