Hello Chetan

The GATE cutoffs for PSU recruitment are based on many factors like the number of applicants, the number of posts that are vacant, the difficulty level of the GATE papers and such. The GATE cutoff scores for PSU Recruitment vary from PSU to PSU and therein are again different for each category of applicants and the posts. ( Source :careers360 )

To get full information with respect to the branches you can follow this link: 

https://engineering.careers360.com/articles/what-are-gate-scores-for-psu-recruitment