Is it same for JEE Mains also??

Is it same for JEE Mains too??

Sir what if I completed my degree course without submission of validity certificate (ST) cause it still processing in validity office. Validity office still does not responding. so my college hold my LC & tell me that your LC cannot be given by college to your admission query. So what should I do, i payed all fees as open candidate so far but they still telling me to take validity first then you will get LC.