Well...
It is a good business, but earning money is not an easy thing, so don't imagine you'll just sit by and earn a lot...
And it is true people search for the nearest possible location...
And it is again also true that you can't be near to every univ...
I'll say better target job doing persons that they will only come to have rest and will give you peace of mind...
e.g. our office is recently shifted to STP3 in I9/3, there are alot of people in search of some near by residence...
There is one being opened, but he's asking a whopping 14K per head... which is rather extraneous....
normally hostels are charging around 7-9k with most of facilities....