i want to do BSC but i dont find any good college in north karnataka \institute innorth karnataka so you suggest me and how 2 approach

and i got 46 percent in my 2nd puc and i want 2 build future in science field only . and i confused in choosing a branch's (like biotech, pcm, cbz ect) pls help me to choose. and in which college i can get admission easily. and im interested in resurch field.