Diploma

No there is no such rules for distance diploma in engineering, you have to go for full time diploma in engineering.

Brother, Diploma in computer science is a bad idea if you have to pursue B.Tech after Diploma. Go directly for B.Tech after HSC, it needs a good knowledge of physics and maths for which HSC is good.

Yes, it would be better if you have some experience in India and get a degree. It would be easy for you to apply for jobs there.

You can't directly get admitted in any of the architecture colleges in India. For admission in B.Arch, you have to face a competitive examination called as NATA (National Aptitude Test in Architecture). Only then you are able to take admissions in any of the colleges in India.
However, it may definit

No, it is not tough if you love the subject and willing to excel in that field. Besides, Diploma you should also do law graduation to become acquainted with various laws applicable in relation to pharmacy business. Mere Diploma is not sufficient.

Hello Deepa,
I think you need to complete 10+2 for doing a course in 3D animation.
You may refer below for the colleges in Nashik and Pune for the same:
1) https://www.shiksha.com/animation/2d-3d-animation/colleges/colleges-nashik
2) https://www.shiksha.com/animation/2d-3d-animation/colleges/colleges-pu

Shivnagar Vidya Prasarak Mandal's Institute of Technology and Engineering, Pune
Shri Bhagubhai Mafatlal Polytechnic, Mumbai
Kohinoor Technical Institute, Mumbai

Dear Sakshi Kumari,
If you have completed your graduation degree, you are eligible to become an air hostess.