BBA

If you're not interested in doing the engineering, then you may go for it. This is a good decision or bad one will be decided by your performance in future. It might be possible that you do very much good in your engineering career or even possible that opposite one happens. So, first of all, look upon your abilities and your strength, that for what purpose you are more suited of. Wish you will have a good decision and have a better future.

Hi,
BBA is a basic step for MBA. You will be covering all the different sectors in the course duration. If you really need suggestions over specialisation few could be-
Marketing
Finance
HR
International Trade
Banking and many more
These specialisations will be the right one if you put in your 100%.

Explain your question so that you can get a perfect guidance.

On India level, you can find many colleges which have done remarkably well for students, but if you are limited to Jaipur then I suggest for UEM Jaipur. The website link here will provide you with best information on programs and admission process with placements for career opportunities https://www.shiksha.com/mba/course/masters-of-business-administration-university-of-engineering-and-management-jaipur-236845.

UEM Jaipur College do have lot of options in engineering as well as management. You can go through with the link provided here to get an insights of BCA https://www.shiksha.com/it-software/course/bachelor-of-computer-applications-university-of-engineering-and-management-jaipur-236844 and BBA https://www.shiksha.com/bba/course/bachelor-of-business-administration-university-of-engineering-and-management-jaipur-236843.

I don't know about the fee structure for BBA. I will do 12th standard during the year 2019 March.