Hi Sneha,

Yes you can apply for a bachelor's degree course after getting the certification of BPP(Bachelor Preparatory Programme) course.

The important point to be noted is this degree is not equivalent to 10+2 and you can only apply to bachelor course offered by IGNOU or other good colleges that accept bpp course certificate. If the college in which you need to do the graduation does not accept the bpp course certificate you cannot do your graduation in that college.

I believe you find my answer useful.