Yes, I can help you! Since you're in the 1st year of a 3-year diploma (polytechnic), you cannot join NITs directly through JEE Main after diploma. NITs do not offer lateral entry for diploma students. To get into NIT, you must have passed 12th with PCM (Physics, Chemistry, Math) and then clear JEE Main. So, if you still want to go to NIT, you have two options: restart with 12th and give JEE, or complete your diploma and join state colleges through lateral entry like LEET. Let me know your interest, and I’ll guide you better.

For more details you can visit the link given below