Hello Student, After 12 science completing

You can do one or two specialisation in BSc three years degree course. Because all of the subjects relating to BSc 3 year degree course you cannot do at a time or in a separate time because it will take at least for one course of three years. Main BSc courses you will find  rewarding in future and with bright job prospect are as follows:-Bsc agriculture, BSc horticulture, BSc forestry, BSc fisheries, BSc forensic science, BSc veterinary science, Bsc IT, BSc biotechnology, BSc microbiology. BSc mathematics , physics and chemistry. The above mentioned BSc courses most of the courses are reading in future is a prospect if you do do MSc with the respective subject and go for research work it will give you a rewarding career in future.

Hope this helps.