If you have appeared for your 12th exams and are waiting for results or you are yet to appear for your 12th exams, you will have to upload "Duly Verified Result Awaited Certificate". This means to say that your results are pending and the admission will be provisional and the final decision for admission will be based on your 12th results. This will be given by your College Principal and he/she has to attest it. The Certificate is nothing but just a confirmation stating that at this point in time, you are still either waiting for your 12th results or have to yet appear for your 12th exams. But so far based on the knowledge of your attendance in the College, it can be ascertained that at this point in time, you do qualify for JEE Mains and the admission is provisional pending for final result of your 12th exams. To qualify for JEE Mains, there is no minimum aggregate criteria. But if you want to join NITs, IIITs or CFTIs then you should score a minimum aggregate of 75% only in your 12th. 11th marks aren't considered. And then to appear for JEE Advanced which is the gateway for admission to IITs, you will need to fulfill the 75% aggregate condition. Now it is 75% for General Category and 65% for Reserved Categories. So how much you score in 12th is what matters to secure your eligibility for NITs, IIITs, CFTIs and JEE Advanced.