Hello  Aspirant,

Congrats for getting good marks. It is hard to decide whether you will get seat in core iits or not. But there are chances of getting,but it is low. Previous year cut offs for obc category,mechanical engineering are:

2019: 30.7

2018: 31.2

2017: 29

Use below link for more colleges cut offs:

https://www.google.com/amp/s/engineering.careers360.com/articles/gate-cutoff-for-me/amp

If you want to predict the colleges you will get use below link :

Hope this is useful