The correct option is A Chennai >>Kanyakumari >>Madurai >>Tiruchirapalli
The number of persons per unit area is known as the population density of a place. Tamil Nadu ranks 12th among all the Indian states in population density. Chennai is the densest followed by Kanyakumari (1106), Tiruvallur (1049), Kancheepuram (927), Madurai (823), Coimbatore (748), Cuddalore (702), Thanjavur (691), Nagapattinam (668), Salem (663), Vellore (646) and Tiruchirappalli (602) districts.