Hello Raj...

As to the answer of your question, yes any student can study MCA course just by being eligible for various entrance exams and writing those exams some of the entrances of MCA are BIT MCA, IPU CET MCA, JNU MCA, NIMCET any many more, and when talking about the fees,the fees of various institute of MCA ranges from 1.5lacs to 7lacs, so yes it can be the affordable figure for a middle class,once you cracked the entrance test,be because fees of government institutes offering MCA is quite affordable.

Good luck!