The present course has been specially designed for the students studying in the subject of Business Economy at CBCS undergraduate level. The course will cover the essential aspects of quantitative techniques useful in management viz: linear programming, Transportation and assignment problems, Dynamic and integer programming, Game theory, simulation techniques, Markov chain, and network analysis. The course will mainly emphasize the different methods of Operations Research (OR). By studying this course students will taught how the solution of the decision making problem can be find using the models of OR. There are some problems which cannot be solved by any traditional methods, in this case the methods of OR will be helpful. The course will emphasize especially the modern techniques along with their significance in the area of decision-making.