I am currently doing Diploma in automobile engineering. Can I take admission for this course?

Yes, you can take admission for Mechatronics Engineering B.tech from Automobile Engineering Diploma surely. Crack the entrance and boom, you are in. Click the link for better understanding: https://www.shiksha.com/b-tech/course/b-e-in-mechatronics-lateral-entry-chennai-institute-of-technology-kundra

You need to clear SSU Entrance Test to get admission in B. Tech. For details, click below https://www.shiksha.com/university/symbiosis-skills-and-open-university/ssu-entrance-test-exam