Agricultural marketing plays an important role in rural development in India by facilitating the exchange of agricultural inputs and outputs. It encompasses issues related to agricultural development and aims to achieve sustainable economic growth. The document defines agricultural marketing and outlines its key functions such as developing agricultural markets and policies that benefit farmers, consumers, buyers and sellers. It also classifies agricultural markets in India based on various factors and discusses challenges faced by India's agricultural marketing system such as seasonality of sales, lack of infrastructure, and multiple middlemen.