Please tell me i am fully coonfused not having good rank in aieee and having only 54% in 12.

it is ok.. percent nevr matters in long run.. no one will ask u what was ur % after 5 yrs india's worst thing is that all education is based on % age. dont worry abt it.... try to give entrance exams which u can give and enter into any good college of engineering as always remember after 4 yrs o

Did you appear your state PET ? 54% isnt bad . you may definitly get admission in private colleges.