An experiment was conducted on healthy and bearing trees of 22 years old mago plants during 2002-03 to investigate the flowering and fruiting behavior of different mango (Mangifera indica L.) cultivars under Ranchi condition. Eleven cultivars were selected for the study in the experiment. These were Langra, Bombay, Mithua, Gulabkhas, Zardalu, Dashehari, Sipia, Fazli, Ketki, Prabhashankar and Mahmood bahar. Langra was kept as check cultivar. Uniform cultural practices were given to all the plants. First flower opening was observed in Mithua (2/1). 100% flowering was found early in Gulabkhas (4/2), minimum period for 100% flower opening was recorded in Fazli (16 days). The check cultivar Langra recorded minimum male flower (74.41%), maximum male flower was recorded in Fazli (85.12%). Maximum perfect flower was obtained in Langra (28.59%). Maximum fruit set was observed in Zardalu (1.02%) and days taken in fruit maturity were recorded to be maximum in Fazli (136.33 days). Maximum fruit length (11.23 cm), fruit breadth (7.46 cm) and highest weight of fruits (220.13 g) were sttained by Fazli. Highest volume of fruit (19,530 cc) and fruit yield (1.95 q/per tree) were recorded in check cultivar Langra.