IPMAT is the entrance examination for admission to Integrated Management course at IIM Indore. To be eligible for IPMAT, you should have been born on or after August 1st, 2000. For SC/ST/PWD Candidates, there is a relaxation of 5  years for the age criteria. And regarding the Academic criteria, Candidates should have secured a minimum aggregate of 60% in 10th and 12th or equivalent examinations. Candidates belonging to SC/ST/PWD need to score 55% aggregate. Now you have score 51% in your 10th and 68% in your 12th. The mandatory aggregate is 55% -60% at both 10th and 12th separately. You haven't mentioned your Category. Nevertheless, your 10th aggregate is a tad less even if you belong to Reserved Categories and so unfortunately you cannot register for IPMAT 2021. You are do not meet the eligibility criteria for Academic qualification. Please read our article for more information: https://bschool.careers360.com/articles/ipmat#IPMAT-Eligibility-Criteria-2021