why m i treated in engineering collges as inferior to those who scored higher in uptu exam n have gud percentage in pcm?

sir,i m frm lucknow n i got 48 percent in pcm unfortunately ( may be i had lost my time of study during 10 +2 or due to lack of proper guidence frm my school) but now a days when all frnds who got gud percent n also have gud rank in uptu entrance exam but i also got rank 1lakh that enable me for CL