The nutritional value of khesari (Lathyrus sativus), a grain legume, was determined for growing and laying pullets. Chemical analyses indicated khesari to be high in crude protein (283g/kg) and low in fat (12.0g/kg) with estimated true metabolizable energy concentration of 12.0MJ/kg. Four hundred Shaver 579 brown pullets belonging to same source were randomly assigned to 4 dietary treatments with 100 pullets each. Least-cost isocaloric and isonitrogenous diet containing raw khesari at 0, 100, 150 or 200g/kg were formulated and fed to grower and pullet developer birds separately during 12-18 weeks and 19-22 weeks respectively. This was followed by feeding layer diets during 23-34 weeks of age. The performance of grower chicks during 12-18 wks of age showed no significant effect on body weight gain and FCR but feed intake increased linearly (P