Sindhu, Pampa, Mahanadhi and Tamiraparani are seven-storeyed whereas all the other (older, classic) hostels are three or four storeyed. These four hostels can accommodate more than 1,200 students. The older hostels were all three-storeyed till the early 2000s when extra rooms in the form of an extra floor and rooms above the common room were added. An additional new floor in the three-storeyed hostels which generally house the undergraduate students and a new block in place of the mess halls of these hostels have been constructed to accommodate for the increased intake of the students. These new blocks could be used as entrances for these hostels.