Hello Abhi,
The previous year GATE cutoff for IIT Indore was 742 for Mechanical Engineering.
With this you can get the top NIT college but not the top IITs or IIT Indore.
For the details of GATE cutoff for NITs & IITs, please go through the links given below
https://engineering.careers360.com/articles/gate-cutoff-for-nits
https://engineering.careers360.com/articles/gate-cutoff-for-iits
https://engineering.careers360.com/articles/gate-cutoff-for-iit-indore
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All the best.