In   the  present  millennium,  with  tremendous  recent  advances in renal  surgeries, it  is  prerequisite  to  have  an  extensive  and  sound knowledge, of  the renal vascular anatomy and its variations, so that, the outcome of transplant surgeries, vascular reconstructions, urological and other radiological interventions have minimal or no postoperative morbidity or mortality on the patients. This study highlights  about a  possible  anatomical  variation  in  renal  vasculature. Patients with  variations  of  renal  vasculature  can be  completely  asymptomatic. The renal arteries  are paired  vessels  arising  from  abdominal  aorta. They branch and rebranch  as segmental  arteries to  supply blood to the  segments of the kidney. Precise  knowledge of  renal artery and its  branching pattern is  useful for  surgeons while  performing  nephrectomies and renal transplantations. Variations can occur in origin, number,  course and branching of renal arteries. A supplemental renal artery  is an  additional artery within  the  renal  vascular pedicle  which  perforates the  kidney  to  supply it.  The  supplemental  renal  artery  can  be  either  an accessory  renal  artery or  an aberrant  renal  artery.  An   accessory  renal  artery is a  one  that  is  accessory  to  main  artery  accompanies  the  same  towards  the hilum  and  enters  through  the  hilum  to  supply  it.  An  aberrant  renal artery supplies  the  kidney  without entering the hilum. This  study was conducted at Department of Anatomy,  Government   Medical   College,   Chennai –2      between     June 2016– October 2017.