The intra and inter institutional linkages in the context of irrigation institutions in the state of Orissa are assessed through actor linkage map and matrix, conflict matrix and importance / influence matrix. Spatial structure of irrigation administration is based on administrative boundaries and projects rather than on any well-defined hydro-geological boundaries. The innovation of Pani Panchayat institution has diverted larger flow of information from other institutional nodes towards it. There is multiplicity of functions of each institutional node as well as multiplicity of institutional nodes for certain function causing conflicts as well as complementarities. The constraints and opportunities for establishing linkage mechanism are delineated providing feedback for strengthening the water institutions to ensure efficiency of the irrigation system

Keyword: Irrigation administration