Development of user-friendly programs for a consultancy project titled "Conjunctive management in tank commands through community wells sponsored by Ministry of Water Resources, Government of India. Contributed to the development of user-friendly programs for Ground Water Flow Model (GWFM) and Surface Water Simulation Model (SWSM) in `C language. The software can be used to find optimal operational rule through non-linear programming for groundwater pumping, number of years of successful crop yield and deficit.