Dear Student ,

GATE exam is a national exam conducted by individual 23 IITs every year. No , It's not for only B.Tech students ..B.Arch,B.Sc,B.A , B.Com (//B.Com) 3rd or higher year students are also eligible to appear for GATE 2022. This year GATE is conducted by IIT Kharagpur .The total marks is 100 but rank is calculated on the basis of 1000.

The subjects details are available in GATE 2022 official website .

https://gate.iitkgp.ac.in/

Cut off marks is different for individual courses .You can check the last year cut off details of GATE from here :

https://engineering.careers360.com/articles/gate-cutoff

Hope this answer helps !