Dear Student,

Yes, you can appear for GATE exam even if you haven't done your B.Tech .

For M.Sc holders, here is the eligibility criteria :

• Master’s degree in any branch of Arts/Science/Mathematics/Statistics/ Computer Applications or equivalent
• Graduation year should be not later than 2024 (for GATE 2023 exam)
• Currently should be in 1st or higher year

For more details about GATE exam , refer this :

https://gate.iitkgp.ac.in/eligibility_criteria.html

Hope this helps !