Bartter syndrome is a rare inherited disorder which usually presents in childhood and is characterized by hypokalemia, metabolic alkalosis with normal blood pressure and hyperreninemia. Bartter syndrome is an autosomal recessive renal tubular disorder, with an inherited defect in the thick ascending limb of the loop of Henle and distal convulated tubules. Bartter syndrome is classified into two types : Neonatal and Classic type. Neonatal type present usually at 24 to 30 weeks of gestation with polyhydroaminos. Classic type present during first two years of life or later. We report a case of 27 year old male who presented with quadriparesis and episodes of carpal spasm and investigations were suggestive of Bartters syndrome, which presented as hypokalemic paralysis. Patient was treated with potassium supplementation after which weakness improved completely. We report this case because adult onset Bartters syndrome is rare.