Old hostels – Every 10 rooms have one common restroom area which consist of two washbasin, two urinals, three commodes(indian style) , three bathrooms(containing a single tap of bathing).
New hostels – every 15–20 rooms have one big restroom area which consist of 3–4 washbasin, 7–9 urinals, 4–6 commodes(western style), 4–6 bathrooms. They are well furnished and maintained (rest depends on users.)
Availability isnt an issue if you might wonder.
PS: Freshers get new hostels. Also old ones are going in renovation every year.