This working paper is developed to highlight the methodology for identification and evaluation of various constraints and minimum requirements of farm firms, identification of feasible activities and computation of their input output coefficients including values of objective function. The model presented in this paper is for both bullock and tractor operated large farms in Central Punjab and the data relates to the agricultural gear 1977-78. As stated earlier the idea was to understand and model the rural environment more accurately such that the solution obtained were practicable. The paper provides a brief description of the profit maximization linear programming model, description of constraints, list of feasible activities and matrix of input output coefficients. Various computing strategies are listed for the users towards the end.