Do we have any management quota seats for MCA course? What is the fee structure for those management quota seats in India?

Hello. I am appearing for BSc Computer Science final year examination next year. Going by my current performance I think I'll probably get around 65-70%age marks at the end of the final year. I passed +2 in science stream with Maths as one of my subjects. Now I wish to go for post-graduation in Computer Science i.e. either MCA or MSc CS. My first preference is MCA. I am also going to appear for the MCA entrance exams. But what if I don't get through the entrance? And I'm not willing to drop one year to appear for the entrance again next year. Are there any management quota seats available for this course? If yes, then which institutions are offering the course through management quota? How much money is required and what is their fee structure? I'm willing to study anywhere in India but the more it is near West Bengal the better it is. So please guide me.

Thank You.