In a landmark paper Franco Modigliani and Merton Miller had demonstrated that in a typical neo- classical set up the average cost of capital to any firm is completely independent of its capital structure. However, skepticism about practical force of invariance proposition and dramatic changes in conclusion dominated this arena of work. Nonetheless, a relatively small body of empirical work has emphasized the factors like size, rate of growth of firm s tangible asset, capital intensity, profitability, volatility of income and tax consideration in explaining the observed variation in capital...