Hii,Look the eligibility for admission is a min of 50% in deploma. Once you get that much you will be allowed to sit for jeelet. For admission only your jeelet rank will be considered. No special weightage to your percentage during deploma.The no of seets though vary year to year.So you have to bag a higher rank for JU else you have to go for JGEC.Like for instance one of my friends got rank 1 in jeelat civil engineering but there were no vacant seets this yr in the civil dept of JU. So he had to take admission in construction engineering.