Based on https://drive.google.com/file/d/11UHN03rug9C5-xRqZrQySdcWBHpQvv41/view , you will need nothing less than 100 if you belong to General Category. If you belong to any of the Reserved Categories, then you can afford to score atleast 85. The link is of 2017 data and so cut offs change every year depending on various factors. But the above mentioned scores should be ideal given the fact that VMR is ranked 9th in the Statel Top Polytechnic Colleges. For more information, please visit the official website: http://vmrpolytechnic.com/Admission.html