B.Tech

Yes, you can eligibility below:
B.Tech. Dairy Technology Eligibility
The diploma and degree courses in dairy technology require candidates who have passed the 10+2 examination, with Chemistry, Physics, Mathematics and English or Physics, chemistry, Biology or Agriculture with a minimum aggregate of 50 % marks.
In most of the States the admission is made based on entrance test common to other agricultural and animal science courses.
TS EAMCET college predictor
https://www.shiksha.com/b-tech/resources/ts-eamcet-college-predictor

Admission is through counseling based on the rank obtained in Karnataka Common Entrance Test (KCET)/ Consortium of Medical, Engineering and Dental Colleges of Karnataka Under Graduate Entrance Test (COMEDK-UGET).
Candidates taking admission under management quota and international quota can directly apply to the institute. Regards.

Hello Skk,
If you did your MBA in a UGC recognized institute like Manipal University, IGNOU, Annamalai University, then surely, you're eligible for NET.
All the best for your future.

Check the list of all B.Tech in Mechatronics Engineering colleges/institutes in Gujarat listed on Shiksha at the link provided below. Get all information related to admissions, fees, courses, placements, reviews & more on B.Tech in Mechatronics Engineering colleges in Gujarat to help you decide which college you should be targeting for B.Tech in Mechatronics Engineering admissions in Gujarat. https://www.shiksha.com/b-tech/colleges/b-tech-in-mechatronics-engineering-colleges-gujarat.

According to my knowledge, for last year, it is around 130-140 for general Category candidates. So, according to your category and whether you're from Maharashtra or not, merit varies based on different criterias.

Yes. You may apply for Amity University. You will surely get a seat in Amity:
http://www.amity.edu/admission