Hi kratik,

Special round requires that the student who participate in it have not taken up a seat in any one of the previous rounds and must pay a nominal amount which will then be deducted from the fees once you join that instituition.

It depends on the number of seats vacant in which category,the course and the instituiton.

Generally,It does not vary by much for courses like CSE,ECE,EEE,MECH

The other courses might see a huge variation as people would have other colleges by then.

You can also have a look at the CSAB special round seat allocation of previous years to get a general trend.