The term "bargadars" refers to :

Sharecroppers

The correct answer is Option (3) → Sharecroppers

The term "bargadars" refers to sharecroppers because they are individuals who cultivate and work on someone else's land in exchange for a share of the agricultural produce.

In Francis Buchanan's survey of the Dinajpur district in North Bengal, we have a vivid description of this class of rich peasants known as Jotedars. By the early nineteenth century, Jotedars had acquired vast areas of land, sometimes as much as several thousand acres. They controlled local trade as well as money lending, exercising immense power over the poorer cultivators of the region. A large part of their land was cultivated through sharecroppers (adhiyars or bargadars) who brought their own ploughs, labored in the field, and handed over half the produce to the Jotedars after the harvest.