He has been bestowed with the Presidential Citation Award, Pioneer in Vascular Surgery Award, INDOVASC, Vice President International Society for Vascular Surgery and Sena Medal by President of India for his services in Kargil War.
Dr Rai special interest lies in Carotid Surgery, Aortic Aneurysm Repair (open & EVAR), Peripheral Bypass Surgery (aorto-femoral, fem-distal) and Dialysis Access Surgery (Fistula/Grafts).