Economics

Both the career are good. You have to do MBA after each one of that to secure good career and a BA in computer Science and economics then MBA seems better, so pursue that.

Hello,To enroll yourself for Ph.D. it is essential to appear in an entrance exam. You can also pursue Ph.D. by qualifying the National Eligibility Test. Yes, the UGC NET Exam is conducted by the National Testing Agency to select the candidates for the post of Assistant Professor and for the award of Junior Research Fellowship. So, if you don't want to appear in any entrance exam to pursue the Ph.D. then it is essential to qualify in NET, GATE etc.

For admission in du for MBA, Maths is Compulsory.

There is a decent amount of scope for BA economics graduates.
Actuarial Science. Actuarial Science is an emerging career option amongst Economics graduates. Finance. Indian Economic Services (IES). Law. Economics and Its Related Disciplines. Rural Development and Public Policy. Management. Consulting.

Yes, definitely no doubt about it. Economics is about studying market behaviors and predicting in which direction it will go. While economics has mathematics to calculate and predict the flow but if you have good command on theories you will become good economist. Don't be afraid of Maths, because in economics it is not very hard, in accounts students say it is.

B.Com honours and Economics honors, the two most sought after course at DU require Maths, as a subject in Class 12th. It is not necessary to include it in the best of four subjects, but passing it is a must. Mathematics must be one of the compulsory subject. Without mathematics, you will not be eligible to get admission in Bachelor's degree in Economics in any top universities like Delhi University or others.

Yes, you can pursue MBA, the only exception is when it's specifically said that you require maths in class 12th. But I do not see any such requirements laid out.

Admission can be done only on the basis of preference. Visit the university for more details.