DAV College, Chandigarh

Yes, you can go for Economics honours as a course despite having studied science in school. In Economics honors, there is not much background or base required as is the case in science. In school they teach micro and macro economics and statistics and Indian economy, which is covered during graduation as well.

There are entrance exams for BBA in well reputatied colleges across the country followed by interviews taken by the college officials after clearing the entrance exam.

Hi, Admission in the above college is based on the marks obtained in 10+2 or equivalent. https://www.shiksha.com/it-software/course/bachelor-of-computer-application-dav-college-Chandigarh-247354
Please refer to the link below for more details on admission:
https://davchd.ac.in/ContentPage.aspx?Id=1648mJoc52bRWS76jCzLmf5o3y/8ZdIbqGbUwCOB+H48fs=
You can download the prospectus. Thanks.

Some universities have a criterion of 70 percent, while some have that of 75 percent.
You can find it out on the respective websites of the universities.
The eligibility criteria, the admission process, Entrance Exam structure, Academics, etc. are all well explained on the websites.
Also, we can access the toll free numbers to further discuss about our queries with regard to the admission.
All the best.

Yes dear, you will have to register online on the university's website. Also, you can visit in person to the college. They will let you know the admission process and criteria. Furthermore, there are toll free numbers available for several universities, you may please call on the same to find out which university has what what criteria for admission.

Hello,
Forms are usually released in April-May. Score well and you will get a good college.
All the best.

Hello,
For M.Sc in mathematics, you must have done B.Sc in mathematics.
All the best.

Hello,
Yes, you are eligible. Fill the forms of the colleges you like.
All the best.