65 years, 83 years, 84 years, 86 years and 87 years annual rainfall data of 10 raingauge stations in eastern India were analysed for prediction of drought and flood years using runs of annual rainfalls. Both for the entire period of studies and the period after 1950 it was observed that 2 years excess of the mean annual rainfall is most likely to be followed by the deficit. https://www.researchgate.net/publication/340130245_Prediction_of_drought_and_flood_years_in_Eastern_India_using_length_of_runs_of_annual_rainfalls