Dr. Devender singh is one of the first few qualified (Board certified) practicing vascular and endo vascular surgeon with special expertise in arterial (aneurysm , bypass , endarectomy) as well as Venous (open and laser) surgery. His "advance limb salvage and re-implantation center" (with dedicated team of plastic and Ortho surgeons) works day and night 24*7 saving limb and life. He has authored articles in various national and international journals (32) and has delivered over 50 guest lectures around the globe. He is a distinguished national and international faculty and has authored 3 chapters in handbook of vascular surgery. Dr. Devender singh was awarded the vaidya sree, vaidya shiromani and APJ Abdul kalam award for his services in the field of vascular surgery. He was the honorary secratery of the prestigious "Venous association of India" (2009-2011).