Hi Gourav ,

Affiliated college
These type are affiliated to some or the other university. They have to follow the syllabus prescribed by the university and also the all the norms & regulations etc. The admissions are decided centrally by the University. The exams too are conducted by the university. This means all the colleges affiliated to the same university will have same question papers and will be evaluated by same people with same criteria.
Autonomous colleges on the other hand are granted freedom and in some or all the matters. They can have their own syllabus, evaluation patterns etc. It is not easy to get the status of an autonomous college, Currently, any affiliated college which has been accredited by National Assessment and Accreditation council of India (NAAC) for three times with a higher grade. This assessment is five yearly. The college can apply for autonomous status and U.G.C. may or may not grant it authorities.

Autonomous colleges are best one because there is no need to ask permission anyone that will be soley depends upon head of the college .

Thanks.