Diploma

Yes, you are eligible for the same. You may check admission criteria of the college to proceed into the Bachelors. Also, JEE score is important.

Hi!
Yes, you can. The minimum eligibility for the course is 10+2 with 60% marks.

Hi!
The fee structure for this will cost you around INR 55, 562 for the duration of 10 months.

You are actually over qualified for this course, minimum eligibility is 10+2
Check out the link below for details:
https://www.shiksha.com/design/interior-design/course/diploma-in-interior-design-and-decoration-international-academy-for-certification-and-training-iact-c-g-road-ahmedabad-258589

Bangladesh is a hot destination for students to study Health & Sciences. If you are planning to complete under graduation in Health Sciences, kindly choose a good college or university and check the website for detailed information. Assuming that you're interested for Bangladesh location only, I have listed out some Top Medical Universities in Bangladesh-
Gono Bishwabiddalay
Shahjalal University of Science and Technology
University of Dhaka
University of Rajshahi
University of Science & Technology Chittagong.

Hi!
Yes, if the eligibility criteria of the college allows, you can go ahead and apply.

Of course, you can continue your B.Tech from ECE.

Hi Ripom,
Admission in the above course is through University level counseling based on the score obtained in GATE.
https://www.shiksha.com/engineering/course/m-tech-in-production-engineering-maulana-abul-kalam-azad-university-of-technology-salt-lake-city-kolkata-269897

Diploma+B.Tech in CSE has much scope over B.Tech+MBA. Because CSE graduates are in commanding position with other disciplines. Higher salary package and higher opportunities for placement are the main attraction of this branch.