Dear Komal, you haven't mentioned which year of B.Tech are you studying in. Neverthless, if you have either completed your B.Tech or if you are in your final year B.Tech in Electronics and Telecommunication, you are eligible to appear for GATE. Today is the last date for filling in the application form with late fees. You can visit our page for more information at: https://engineering.careers360.com/articles/gate-eligibility-criteria