I am gud in bio . intrested in research field may be not giving any entrance exm n also not soo gud marks in 12 wht shld i do aftr 12

I have got 8.2 in 10 . i have not got my 12 perentage till now. bt may be b/t 73 to 78 or 79 percentage . i am science student ( PCB ) n 68 % in 11 interested very much in bio . should i able to get some proper college and also i am going to give aipmt and aims exam this yr