Dear student, engineering course there is generally three years diploma course. After before completion of the course if you want to apply in 4years  BSc nursing course there will be no problem other than your in a respective  qualifying marks in the BSc nursing examination admission test. You need to get 45% to 50% marks in 12th standard examination for BSC nursing course. Range of course fees vary from 20,000 to 250000 rupees. There is a GENPAW which is the admission test for BSC nursing course admission.