Humanities & Social Sciences

You will just have a master's degree in economics. After that, you will be eligible for all post graduate exams and programs like Ph.D. and M.Phil. All the best.

Firstly, take direct admission for Master's degree. The admission is given on the merit basis to only students who are from DU itself and has good marks. If you are from other university, you have to give entrance. If you were a student of DU, it is a plus point. Regards.

Yes you can. BA just only Yes, you can. For pursuing BA, you just require to pass 10+2 or equivalent. require 10+2 or equivalent

If you are doing B.Tech, why do you want to change the field of study from technical to non-technical? It is better to continue B.Tech, and if you really want to do MA, refer to university website for eligibility.

It's a private university. The fes will be very much higher. I would like you to see some other colleges regarding the same course.
To assist you in choosing the college to pursue the same, kindly refer to the link below for more information on the colleges:
https://goo.gl/YHw7Wq
I hope this answers your question to your satisfaction. If so, kindly upvote this answer. If you have any further questions, kindly revert.

B.Sc with maths is a perfect choice for your future as you have science background, hence you should go for B.Sc.

National Open School is valid in India. But some colleges have different eligibilities for their UG courses. You can go and search on the website of the college.

Approximately 60k is the fees for BA in journalism.

IGNOU will be best option for you to take admission in MA history by distance education.

Dear,
You are to successfully qualify your +2 board examination (12th board) for being eligible for doing BA in any mode (regular/correspondence).