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Hydrological analyses are often encountered with many missing periods of rainfall while designing developmental action plans for inaccessible and disadvantageous area. Visual basic based application software (to run in MS Excel) was developed to calculate and autofilled the missing rainfall data using widely followed Normal Ratio Method. The operational details of the software are described in the paper.

The requirement for food grains in the rainfed hill plateaus of the Kandhamal district of the State of Orissa, India was calculated according to accepted nutritional standards over 14 years from 1993 to 2006 and compared with actual production during this time. Owing to the increase in population, the requirement increased from 120×10 3 MT in 1993 to 142×10 3 MT in 2006. Production, however, ranged from 68.5×10 3 MT in 2002 to 134.9× 10 3 MT in 1994 and was only sufficient in 2 of the 14 years. The requirement for food grains for a projected population of 753,542 in 2011 was estimated to be 152× 10 3 MT. At present the area sown is 115×10 3 ha and would require cultivation 1.83 times per year (cropping intensity 1.83) to produce enough foodgrains for nutritional sufficiency. This could be reduced to 1.64 if the current fallow area of 13×10 3 ha were cultivated. Increased productivity could be achieved by greater use of irrigation and groundwater.

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