Dear Danzer you are not illegible for this scholarship or even any of HEC scholarship...........HEC has clearly mentioned in their advertisements of scholarships that a person who has D grade or less than 50% marks in their academic career are not illegible for scholarship................... you may view it from these links...........
http://www.beta.hec.gov.pk/INSIDEHEC...yCriteria.aspx
http://www.hec.gov.pk/InsideHEC/Divi...yCriteria.aspx