Like every year, it is expected that there will be high competition for DU Science Cut Offs 2019. The University will release round-wise DU BSc Science Cut off List 2019 on the basis of which applicants are granted admissions in the various undergraduate (UG) courses at Delhi University. DU is expected to release the online registration portal for DU Admissions 2019 in the second week of May 2019. The interested candidates who fill in the DU Form 2019 and submit it with all required details will be granted admission in the respective DU College only if they fulfill the criteria as mentioned in the cut-off released by various DU Colleges.  81% is a little less to get admission in Delhi university so I would suggest you to keep other options open. Hope for the best.