Hello saikat,

The IISER aptitude test 2019, minimum marks to qualify the exam is set by IISER committee. The minimum marks to qualify for IISER pune is 110/180. The minimum marks to qualify for any other IISER is 70/180. Fir further details visit the link given below,

https://www.google.com/amp/s/engineering.careers360.com/articles/iiser-merit-list-and-cutoff/amp

Good luck!

Dear aspirant,

      When we talk about IISER, like any other exam, the cut-off for this test is also jot a constant. There is absolutely no disclosure of marks in the aptitude test, there is no merit list either. The number which others tell you is just a guess and there is no information absolutely available. Although, for general category student  marks of about 110 out of the total marks may be good to get into top oneso like IISER, Pune. My personal advice is to score maximum in your strength amd dont make negative answers. 

Hope this helps !!

All the very best !!