Hi Siddhartha,
Yes, you have very high chances of getting CSE by round 3 if not by round 2. Suppose even in the worst case scenario you don't get CSE, you'll still have IT which is pretty similar to CSE in the course curriculum. Both CSE and IT students are eligible for placements to the same companies.
Btw don't lose hope you'll get CSE easily.
All the best
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