B.A Economics

BA Economics if opted from a good college like St. Xavier's College-Mumbai or some DU college has much wider scope than BA. But if you did not get in top colleges then it is advisable to do BBA since it is a technical and professional course and has a higher value of its degree than any of the low BA colleges.

No, it's not mandatory to have maths in best four but you need to have maths as one of your subjects in +2. Although, it is mandatory to have economics (without which a deduction of 2.5% will be done) and English ( or other language subject). Hope this helps.

BA in economics deals with other fields of economics, as in macro micro, so it is much tougher than BA. On the other hand, BA only offer little bit of economics, which is really less as compared to BA in economics.

Proper date is still not announced.

MBA can be done after any of these better . So it doesn't matter which one of bachelor degree you take . You can do any of them between BCom, BBA, or ba .

Yes, it is mandatory in 12th to get admission for BA (economics) in all DU colleges.

I hope the question meant 'in Delhi University'. Please correct me if wrong. You must have studied maths in class 12th to be eligible for B.A. Economics in the university. Maths, however, need not be included in the best of four.

Let me start by telling you a little on what Economics is all about and how is it linked with Math and Statistics.
Economics is a social science. What makes it different is its use of maths and statistics to prove theories and concepts while still incorporating other subjects, such as politics, philosophy and geography. It is basically a statistical data which needs computing to get results.
Thus to study Economics at the Undergraduate level math is compulsory.