Alternative Investment Fund or AIF is a privately pooled investment vehicle that invests in alternative asset classes such as private equity, venture capital, hedge funds, real estate, commodities, and derivatives. Generally, HNIs (High net worth individuals) and institutions invest in the AIFs as the investment amount is substantially higher.

AIFs are regulated by the SEBI (Securities and Exchange Board of India). As per the SEBI (Alternative Investment Funds) Regulations, 2012, an AIF can be set up as a trust, a company, a limited liability partnership, or a corporate body. However, many of the AIFs that have been registered with SEBI are in the form of trusts.