Terna Engineering College

For Diploma holders and BSc holders, AICTE has permitted to enter into engineering degree programme through lateral entry directly into second year. These admissions are based on Diploma marks and completely handled by Maharashtra State CET cell. Normally intake capacity is 10% of First Year intake capacity. So you have to apply through the State Common Entrance Test Cell, Maharashtra State website.
http://cetcell.mahacet.org/landing-page2019/

Yes, you can do a Diploma in Mechatronics, as it is a very good course. Diploma in Mechatronics Engineering is a 3 years long Diploma certificate program. This course can be pursued by students who have passed the 10th standard as well as class 12th.
All the very best.

Yes, you can get admission in BE through lateral entry admission. When you will take admission then you will know about course. In BE. /B.Tech (Mechanical Engineering), there are lots of subject. So, you will have to study all subject including Mechatronics.

Refer the link: https://www.shiksha.com/engineering/jee-main-college-predictor
https://www.shiksha.com/engineering/mht-cet-college-predictor

Go through this link and get full info regarding your query.
Link : https://www.shiksha.com/b-tech/course/b-e-lateral-entry-terna-engineering-college-tec-navi-mumbai-251039

After completing Diploma in computer engineering, you are eligible for direct admission in second year.
Good luck.

Hello,
Please go with this college predictor this will help you to choose best for you
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Thank you.