The exposure to submergence had left detrimental effects (P = 0.05) on number of effective tillers and yield of all the cultivars, grain yield was decreased up to 55.8 and 161.7% in IR-20, 14.2 and 26.7% in IR-64 Sub1, 9.7 and 21.2% in Swarna Sub1 under clear and turbid water submergence, respectively, as compared to non-submerged condition (Fig. 3). Number of effective tillers decreased (P = 0.05) up to 2.5 times in IR-20, and around 0.8 times in IR-64 Sub1 and Swarna Sub1 due to submergence as compared to non-submerged conditions. Grain yield and effective tillers was positively influenced (P = 0.05) by post-flood N application and influence was more when basal P was applied. When N was applied alone, grain yield was 25.8, 17.8 and 17.1% lower as compared to basal P application with post-flood N. The crop fertilized with urea foliar spray and P yielded 87.6, 53.1 and 47.6% higher grains in IR-20, IR-64 Sub1 and Swarna Sub1, respectively, than the unfertilized crop (Fig. 3). Further, urea foliar spray had additive beneficial effect on grain yield and proved superior to urea broadcasting.