Hey Pawan! 

Gate score for iit's - 

Iit's cutoff for gate is the minimum score required for admission into mtech programmes across various iit's. Candidates who scored equal marks or more than cutoff of marks of gate iit's will be considered for admission into mtech programmes.

In the link below there is a list of the iit cutoff for gate - 

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

The other colleges preferebly iitd, iitm,iitk,iitkgp,nitie the cutoff includes - 

General - 750+

Obc- 650+

Sc- 400+

St - 350+

The other mtech colleges include - 

Anna University 

Bits pilani

Cochin university of science and technology

College of engineering trivandrum

Delhi college of engineering

Delhi technical university

Gautam buddha technical university

Sv college of engineering 

Wish you all the best!