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For placement-mechanical:
There are a very few job vacancies in mechatronics for freshers in very few organisations. Since you will not study some core subjects of mechanical engineering, you won't be able to clear GATE or any other exam. It might be a problem a problem if your goal is to do job.
For knowledge and projects- mechatronics:
It's obviously better in many ways. Thing is that you will neither be as good as a mechanical engineer nor as good as an electronics engineer so all you would be able to do is make projects and learn about both fields simultaneously. But the projects you will be able to do are better than projects in core branches.

First option is MBBS
2. VETERINARY SCIENCES
By doing this course also, one can become a doctor. A doctor of animals, to be precise! Hi, don't underestimate this course though! This is one of the least saturated course out there. By less saturated, I mean, relatively, this course is opted by few students. This makes it very easy for a graduate student to get Government Job easily! Further, people are getting more and more interested in petting animals. This trend is even catching up in big cities. So, the scope of starting up your own clinic/venture also is good! Check out this detailed guide to get more details about Veterinary Science course-B. V. Sc. And AH Course.
3. B.A. M. S. (Bachelor OF AYURVEDA, MEDICINE AND SURGERY)
Again, by doing this course also, you can become a Doctor. But an Ayurvedic Doctor! Ayurveda is a field, which is thriving even now. It started to grow a while back, with the boost in tourism industry. Thanks to a booming tourism industry, Ayurveda Tourism packages have become quite popular among tourists. Many chains of Ayurvedic hospitals are raking in huge profits during the tourist season.
4 BDS (Bachelor OF DENTAL SURGERY)
After doing this course, you can become a Dentist. Yes, you will be called a Doctor!
Like MBBS in order to succeed and have a good career in this field, you one must be willing to do PG course also. The duration of the course is 5 years. Compared to an MBBS Doctor, a BDS Doctor will have a bit more time to relax! The schedule won't be as hectic as an MBBS Doctor. But this again depends on various factors like the popularity you achieve, your work rate, skills etc. A popular dentist will have more appointments and thus have a busy time!
#5 PHARMACY
You may go for B.Pharm Degree, followed by an M Pharmacy Degree and land a good job in Pharmaceuticals company or as a lecturer in Pharmacy colleges. The course duration of B.Pharma is 4 years and that of M.Pharma is 2 years. So, doing both of them will take up 6 years to complete. You may even apply for Government Jobs. Some examples of such jobs are- Drug Control department, Pharmacist in Government Hospitals etc. # 6 PHARM D
Pharma this a lot different from B Phar and M.Pharma. Actually, it is a combination of B.Pharma M.Pharma and MBBS!
The duration of the course is 6 years. I've heard that since the course is a combination of all the above mentioned courses, it is a bit difficult to study.