Step 1: Understanding the Concept:
The question asks for the term that describes the act of selling a portion of a company's shares (capital stock) to generate funds and potentially alter its ownership or management control.
Step 2: Detailed Explanation:
Disinvestment: This is the process of selling equity shares of public sector undertakings (PSUs) or other assets by the government or a company. The primary goals are to raise funds for the seller, improve efficiency through private participation, and change the ownership/management structure. This definition perfectly matches the question.
Export Promotion: This refers to government policies and incentives designed to encourage domestic companies to sell their goods and services abroad. It is a trade policy, not a corporate finance action.
Devaluation: This is the deliberate downward adjustment of a country's currency value relative to another currency or standard. It is a monetary policy tool.
Dereservation: This means opening up industries that were previously reserved exclusively for the public sector or small-scale industries to private sector competition.
Step 3: Final Answer:
The correct term for the deliberate sale of a part of a company's capital stock is Disinvestment.