Participatory Note (P-Note): This is a financial instrument issued by registered foreign portfolio investors (FPIs) to overseas investors. It allows overseas investors to participate in the Indian stock market indirectly without directly registering with the Securities and Exchange Board of India (SEBI). The FPI holds the underlying Indian securities, and the P-Note represents ownership for the overseas investor.

The other options are not used for this purpose:

Certificate of Deposit (CD): Issued by banks to raise short-term funds, not related to stock markets.

Commercial Paper (CP): Short-term debt instrument issued by companies, not related to foreign investment in stocks.

Promissory Note: A written promise to repay a debt, not used in this context of stock market participation.