Hello,

The eligibility cutoff of 2018 is as follows,

General (GEN)- 20%(minimum aggregate)-5%(for Physics Chemistry and Mathematics (PCM) Individually)

Other Backward Community- Non Creamy Layer OBC-NCL)-18% (minimum aggregate)-4.5%(for Physics Chemistry and Mathematics (PCM) Individually)

Scheduled Caste(SC, Scheduled Tribe(ST) & Persons with Disabilities(PD)- 10% (minimum aggregate)-2.5%(for Physics Chemistry and Mathematics (PCM) Individually)

Every year the cutoff will vary based on the difficulty level of exam, no of applicants, no of seats available etc.

You can check the previous year cutoffs to understand the trend.

You can check the cutoff of each departments using the link below,

https://engineering.careers360.com/articles/iist-btech-cutoff

Hope this helped you!

Thank you!