Hey Jaswanth, 

Yes it happens most of the time. The students who do not study or live there in the hostels try answering on the basis of listening it from other students. The accurate information can only be provided to you by the students only and mainly those who are hostellers too. They will help you with this with their experience and will also tell about the benefits and flaws. So it will be best if you get the information from the students themselves. Or you can use the helpline number for that purpose.

Hope it helped..