my name is spelled wrong in course completion certificate which i applied as eligibility document for gate form what should i do?

Hello Lalit Sharma,
As your name was wrongly in the certificate . The only choice you can do now . Request the issuing board a complaint of being name mismatched hope they can hope you by correcting your name in the certificate .
The mail of the team will be available in the official site log on their and mail them your problem
All the best