Studies on water, protein, lipid content and calorific values (k.cal/g) in different tissues such as muscle, liver, kidney, ovary and brain have been made in a fresh water Indian major carps Labeo calbasu (Ham. ). Protein, lipid content and calorific values were found maximum in liver while the brain contained maximum water content (88. 15%) and minimum amount of protein content (9.3010.84%). The details have been discussed in this paper.