Dear aspirant,

The total marks for IAT is 180.

The number of students attempting and the difficulty of the exam keeps varying every year so we can't predict things accurately.

Based on previous year trends we can say that, if you belong to the general category, you'll need atleast 80+ marks to secure a seat in any of the IISERs. So, if you belong to general category , it is quite difficult to get a seat in IISER

If you belong to the SC/ST category , you have a decent chance of getting IISER-Berhampur, Tirupati, Bhopal ( the new IISERs )

So, please keep other options open.