A water table management system synonymously referred as Controlled Drainage and Subirrigation system or controlled and Reversible Drainage System was designed and executed in Eastern Farm A Block, Agricultural Engineering College and Research Institute Kumulur. This research article reports the pre-drainage investigations carried out in the study area for arriving at certain important design parameters for the design of water table management system for both drainage and subirrigation modes separately. Steady state hooghoudt equation was used for the design of drainage spacing and similarly the procedure followed by Doty at North Carolina University using Moody Equation and convergence analysis was used for subirrigation mode spacing. The spacing arrived for drainage mode was 15 m to that of subirrigation was 10 m respectively. Considering the feasibility of operation of both subsurface drainage and subirrigation, the spacing of 15 m could be recommended for water table management system of Eastern Farm A Block in AEC &RI kumulur, Tamil Nadu.

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: The geomorphological characteristics of a watershed are more commonly used for developing the regional hydrological models for solving the various hydrological problems of the ungauged watersheds or inadequate data situations. Therefore, in this study morphometric analysis and prioritization of twenty one sub watersheds of palathodi watershed, which is tributary of ParambikulamAliyar river basin considered for this study. The morphometric parameters considered for analysis are stream order, stream length, stream frequency, drainage density, drainage texture, form factor, circulatory ratio, elongation ratio, constant channel maintenance, length of over land flow and compactness constant. After analysis of morphometric parameters compound parameter values are calculated and prioritization rating of twenty one sub watersheds is carried out. The sub watershed (Malumichampatti village) 4 has lowest compound parameter value 6.1 is likely to be subjected to a maximum soil erosion; hence, it requires immediate attention for provisions of soil conservation measures.