Hi Rao, you can do BBA with having science in 12th. The minimum eligibility to get admission in BBA is 10+12 from a recognised board with minimum 50% aggregate marks. It is a 3 years full time course. In many colleges you have to give aptitude test conducted by the college/University. 

all the best!!

Hi dear,
           You can definitely pursue BBA after studying science.You will face a bit problem  in coping up with the commerce syllabus.It takes time and dedication to fully understand the commerce subjects such as accountancy, tax ,audit in depth.You will have to spend more time studying compared to your fellow commerce students.
So ,yes, you can pursue BBA after science.
Best of Luck!!

Yes , you can do BBA with having science in 12th.

Hello Anupam, you can definately apply for bba with science in class 12th. your english and mathematics marks will matter a lot. some universities may require an entrance exam for a better relativity of subjects. keep a check on official websites for complete information regarding the admission procedure.