The present investigation was conducted at the Vegetables Research Farm, Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, duringKharif season of 2017 and 2018to determine heterosis in 28 crosses developed from 7 lines and 4 testers of bitter gourd. The testers used were BGCV-2, OBGCS-2, Shaktigopal Local, OBGCS-1 while Pusa Do Mausami was used as check. | Studies on effect of heterosis on fruit characters and yield in bitter gourd Momordica charantia L.