percentage rebate on mrp of medicine and medicine related product to s upply drh ddu percentage rebate on mrp of medicine and medicine related product to s upply drh ddu percentage rebate on mrp of lab reagents and lab related items to supp ly drh ddu percentage rebate on mrp of medicine and medicine related product to s upply drh ddu percentage rebate on mrp of lab reagents and lab related items to supp ly drh ddu percentage rebate on mrp of surgical consumables items etc for use of drh