Hello Aspirant

The Authorities upload the concerned marks or the rank on their website.The candidates are made available with opening and closing ranks

The previous year cutoff of various IITs are as follows

1. IIIT Allahabad:4125 Obc,10575 Open
2. IIIT Jabalpur:5769 obc,15260 Open
3. IIIT Gawlior :4239 OBC

The cutoff for 2020 was

1. IIIT srirangam Obc:7744 ,General:21750
2. IIIT Dharwad:OBC:12675,General:32991

There are many more IIITs that you can apply to,you can gather all the required info from the given site

For more details you can visit:

https://engineering.careers360.com/articles/jee-main-cutoff-for-top-iiits

Regards!