Internal and Extra Budgetary Resources (IEBR) refers to the resources raised by Public Sector Undertakings (PSUs) through loans and equity. It is one of the sources of financing for the government's budgetary requirements.

Explanation:

Internal and Extra Budgetary Resources (IEBR) are funds raised by PSUs through various means to meet their financial requirements. These resources are not directly included in the central government's budget but are used for various developmental activities and investments.

IEBR can be understood in detail through the following points:

1. Financing received from IFC Masala bonds: This option is incorrect as it refers to financing received through a specific type of bond issued by the International Finance Corporation (IFC). Masala bonds are rupee-denominated bonds issued outside India to raise funds. While they contribute to India's external borrowing, they are not directly related to PSUs raising resources.

2. Resources raised by the PSUs through loans and equity: This option is correct. Public Sector Undertakings (PSUs) raise funds through loans and equity to finance their operations and investments. Loans can be obtained from financial institutions, both domestic and international, while equity can be raised through the issuance of shares in the stock market. These resources are separate from the central government's budget and are utilized by PSUs for their specific projects and initiatives.

3. Monetization of deficit through Forex Reserves: This option is incorrect. Monetization of deficit refers to the process of financing the fiscal deficit of the government by creating new money or borrowing from the central bank. Forex reserves, on the other hand, are the foreign currency assets held by the central bank of a country. While forex reserves can be used to finance imports and stabilize the currency, they are not directly related to the monetization of deficit.

4. Basel III Capitalization of Commercial Banks: This option is incorrect. Basel III refers to a set of international banking regulations that aim to strengthen the capital adequacy and liquidity of banks. It does not directly relate to the financing of the government's budgetary requirements or the raising of resources by PSUs.

In conclusion, Internal and Extra Budgetary Resources (IEBR) primarily refers to the funds raised by PSUs through loans and equity. This source of financing helps PSUs meet their financial requirements and undertake developmental activities. It is separate from the central government's budget and plays a crucial role in promoting economic growth and infrastructure development.