The study has analyzed the level of technology adoption and its impact on crop productivity/profitability for sustaining crop production in the diara areas (the diara agro-ecosystem is situated in between the natural levees of rivers and remains inundated under floodwater for different periods of time). The present investigation is based on the primary data collected from a sample of 60 randomly selected diara farmers from a cluster of 3 villages in the Munger district of Bihar. The cropping intensity of sample diara farms has been found as 181 per cent and there is a wide gap between the recommended and adoption levels of technology. The seed is used in excess in most of the crops. The other technologies are also used sub-optimally. The realized yield has been found far below the potential yield, ranging from 51 per cent in gram to 80 per cent in the rabi maize. Though technologies for crop management have been developed, their transfer seems to be slow. The areas have been found pre-dominated with small and marginal farmers, low marketable surplus and inadequate capital, resulting in sub-optimal use of critical inputs. To encourage farmers for higher production, the study has recommended creation of alternate marketing channels to improve the marketing efficiency and profitability level.