Multi-level Marketing, Network Marketing, Pyramid Schemes all fall under the general category of Direct sales or Direct selling. A mode of Selling goods or services with the help of a group of people or network of people.

Pyramid schemes can be defined as illegal activities or illegal schemes of MLM. And also, the Ponzi schemes that work in the MLM model. In Some parts of India, it is also called a Money chain program. These schemes are like the other side of the coin likewise a coin has 2 sides.