Career

only ctet and Tet have to pass for being a teacher

For mass communication, you can join arts. You can also take Science if you can score good marks.

you can but CA exam is very had if you clear that with good grades them you have good jobs in your hands.

you can do job, CS, CFA , CFA ,ccap , MBA , M.Com , llm , mphil , CA , icwa , actuarial Science courses as you wish.

Have you appeared for any entrance exam? with this percentage you can get maximum branches but there are very few colleges that provide admission only on the basis of 12th percentage or you can get in through management seat

I think Newdelhi , Pune, Bangalore and Kolkata are the best choice for icwa coaching.

Hello.If you really feel that your aptitude and interest lies in designing,browse the National Institute of Design, Ahmedabad website and see if their M.Des in product design or furniture design etc. programs would connect to your needs. You can then prepare accordingly for similar programs.
As already suggested ,you can go for Interior designing course along with or after B.Tech.

I say Telugu is very widely chosen. English is difficult, because preparation for it will be difficult, in view of the range of the subject.