i hav given class 12th exam and passed with 64% wch is very bad i know.how can i apply for B.tech ?

if btech is ur hearty interest u can apply for it nothing to worry in dat...........,if not u beter to choose other courses of your interest which can make you shine up in future. ALL DA BEST........

don't worry,I think you should calculate your AIEEE scores and then evalute yourself you will get your answer.