Variable returns to scale dea results in production

Given a set of inputs that produce outputs, the production function defines an optimum relationship for producing the maximal amount of output from the given inputs. The DEA equivalent of the production function is the efficiency frontier which is based on empirical data (inputs and outputs). For a single input-output case, the ratio of a unit's output to its input. Productivity varies according to changes that occur in the production technology, the efficiency of the production process (which can be measured through DEA) and the production environment. The main aim of the present research study is to measure the different types of efficiencies of major states industries in INDIA during the period 2012–13 by using Variable returns to scale in Data Envelopment Analysis (DEA).