Hello,

No, diploma students are not eligible to write the gate examination. According to the eligibility criteria, Candidates should 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.

For more information, please go through the following link

https://www.google.co.in/amp/s/engineering.careers360.com/articles/gate-eligibility-criteria/amp