Dear HABIBUL
SORRY but you wont be able secure any seat under general category with this rank .
But if i consider your 3400 rank under OBC category , according to previous year cutoffs you might get admission in following condition and courses
Course.             CATEGORY
ECE.                    BCGL &BCFF
ME.                      BCGL BCFF &BCHC
CH.                      BCGL


GOOD LUCK