Dear aspirant,
It is quite hard to predict the situation as it depends on the number of students attempting the exam and the preferences of students.
There are 200 seats in IISER Pune. Going by this, we can say that you have a really good chance of getting into IISER Pune in second or third round. There are usually a lot of students who don't take admission into IISERs after IAT results.
Hence, we can say that you have a really good chance of getting IISER Pune.
Hope this helps.
Check out the link below for more details on IISER cutoffs.
IISER cut-off
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