I am not sure but I think you are just because of the category SC you can think off but usually changes occur each year but majory recruitment is done by GATE score with 60 percentage in 10th,12th and graduation for general category  but for you I think there is extension.

So go for it

Hey

Candidates seeking jobs at the PSUs must meet the eligibility criteria required for the job, which generally is a valid GATE score in a discipline relevant to the job. The PSU may also specify the minimum pass percentage or CGPA obtained in their degree that has be considered while applying. Some also specify age limits. A medical examination after shortlisting is a must for all candidates before recruitment. The required BE percentage is different for all PSU but you should have minimum 50%.

Good luck

As per GATE guidelines:

Candidatesshould have completed their Bachelor's degree in Engineering/Technology or Master's degree (M.Sc) in any relevant science subject or must be in the final year of the programme.