Diploma

You cannot take EAMCET exam because it can only be taken by those students who have completed their intermediate and if you want to pursue engineering, you should take ECET which will directly fetch you admission in the B.Tech 2nd year.

I guess, there is only one course which is Project Management. See the link below to get more information:
http://www.douglascollege.ca/programs-courses/catalogue/courses/COBA/COBA3200
you can also search other course
All the best

It depends on many factors. A list of the following will give you a clear picture.
1.Interest: As you pointed out you want to do CS (Computer Science) if you are really sure about it. I would say go for diploma in a very good college. The quality of Diploma education is not great as it used to be 10-

It would be better if you choose B.Tech, as there would be elaboration of subjects you have learnt in Diploma. So, you may feel it easier than other students from +2. This is only a suggestion. You may opt your subject based on your insight.

Hello Akash Gupta,
Unfortunately, you are on eligible to appear for JEE Mains, because you have to clear 10+2 in state boards and be in the top 80 percentile to appear for the exam. If you have done a Diploma, you have to appear for Diploma to degree counselling.
Hope this helps! All the best!

Hello Makham Shaikh,
You need not appear for JEE Mains as you need to get admission for Diploma, after that, if you want a degree, you have to appear for Diploma to degree counselling, i.e. apply in B.Tech via lateral entry. Check the link given below and get the list of best colleges:
https://www.shi