Authors have focused on Forecasting Model of flood inundated area along Sharda River in Uttar Pradesh, India. The satellite data,IRS-P6/AWiFS, IRS-P6/LISS-III and IRS-P6/PAN have been used. IRS-P6/AWiFS satellite data were used for mapping of catchment area of Sharda River in Nepal Region too. The watershed boundary was also created around this river using editing tools by considering direction of water flow. Book highlights application of GIS technologies to develop a model for forecasting of flood inundated areas. Its importance is widely recognized as a vital non-structural measure to alert the people living near banks of Sharda River about the forth coming flood. Flood forecasting systems have been formulated to make flood warning and to prepare the evacuation plan well in advance. Loss of human lives and property can be reduced to a considerable extent.The people could be moved to safer places in an organized manner as soon as the flood warnings are received.