What is the primary objective of an 'Exit Policy' in the context of industrial reforms?

In which year was the second Industrial Policy Resolution (IPR) adopted in independent India?

Arrange the following milestones related to India's industrial policy and public enterprise evolution in chronological order. I. The initiation of economic reforms shifting the emphasis from expansion to efficiency and restructuring. II. The emergence of significant operational problems such as inefficiency, overstaffing, and financial losses. III. The Industrial Policy Resolution recognizing the initial need for state participation in key sectors. IV. The Industrial Policy Resolution assigning a dominant role to the public sector in the commanding heights of the economy.