Accounting & Commerce

Hi,
Yes, for admission in B.Sc computer Science or B.Sc IT or Bachelor of computer application mathematics is mandatory in most of the known and reputed institutes. For example: SRM University has the following criteria:
10 + 2 (Higher Secondary) with mathematics mandatory or computer Science with mathematics (Minimum aggregate of 60%). For any colleges under Mumbai University:
A candidate for being eligible for admission to the three years integrated course leading to the degree of Bachelor of Science (B.Sc. ) must have passed Higher Secondary School Certificate Examination (standard. XII) in Science stream conducted by the Maharashtra State Board of Secondary and Higher Secondary Education with Mathematics and Statistics as one of the subject or its equivalent. Admission will be on merit, based on order of preference as follows:
Aggregate Marks at H. S. C. or equivalent. Aggregate Marks in Science Group (Physics, Chemistry and Mathematics). Marks in Mathematics and Statistics and Physics. Marks in Mathematics and Statistics

Yes. You can do CA along with B.Com. But honestly, it's like dream to have it all. It's better if you do B.Com from good colleges and prepare for IIM entrance exam I. e CAT or do B.Com and then, enter directly to CA intermediate level I. e IPCC. CA is already high qualification. CA take 4.5-5 years to complete the Course if u are brilliant or it can take more than this and B.Com takes only 3 years and MBA takes 2 years. I will advise you to go for B.Com and MBA if you are brilliant, then go for B.Com and CA or if you are ultimate brilliant, then go for what you have thought of. I'm sorry if you felt demotivated. You have a lot of time to think and decide. Choose wisely because we can't rewind the time. All the best for your future.