Hello Anchal,

As you say you score good rank in NEET exam so you definitely got a top college like AIIMS, Cristian Medical College, NIMS University and many more college depend on  your NEET rank. Now come to the point about your doubt so it is not matter which board you clear your 10th or 12th class, the marks you obtain it's matter to get admission otherwise nothing else.

hope this information help you

All the best!!