As per the query asked by you, the hostel fee varies from college to college and that too with the facilities been given to the students. See, generally the fees for a year lies in the range of 30,000 INR to 1 lakh and sometimes even more. This variation is due to the status of he university/college you are going for the admission. Also, you must understand that sometimes hostels charge such amounts because they are providing good facilities and safety as well to the students.
Also, you have asked about the fees for bsc in computer science. See, it is same varies from institution to institution. Generally, the fees is approximately 45,000 to much more than this. Better is to mention the college name in the query or you can simply post another query by mentioning everything in detail for the same.
Thank you and good luck!!!
Every college will have its own good and bad things. Check the faculty information to analyze their study background and teaching experience. Most of the government colleges will have experienced professors. You can get good knowledge from them. Beyond that, you have to put your own effort to improve yourself.
Hope it helps.