The studies on the effect of foliar application of boron and GA₃ on fruiting and yield of phalsa was under taken in Horticulture Garden of Department of Horticulture CSAUA&T, Kanpur during 2015-16 and 2016-17.There were 4 levels each of GA₃ and Boron i.e., 0,10,20,30 ppm and 0,30,40,50 ppm, respectively tried in a Factorial Randomized Block Design with three replications. First foliar application of the treatments was given when the flower buds were fully swollen and it was superimposed after three weeks. GA₃ in increasing concentrations maximized fruit set, fruit diameters, fruit weight of 100 fruits, volume of fruit and yield per plant significantly during both the years recording 72.01, 72.74%; 0.92, 0.93 cm; 119.04, 123.13g; 1.25, 1.26 cm3 and 5.39, 5.70 kg values, respectively with 30 ppm of GA₃ treatment. Similarly, boron also increased these attributes with increasing doses showing 70.02, 70.72; 0.89,0.89; 11.058, 114.38g; 1.24, 1.25 cm3 and 5.13, 5.40 kg. values, respectively. Interactive effect of 30 ppm GA3 and 50 ppm boron improved all the parameters numerically.