What is the main cash crop of Bihar state?

Tea
Rubber
Sugarcane
Coconut and coffee

The main cash crop of Bihar state is rice. It is grown in the floodplains of the Ganges and its tributaries. Other important crops include wheat, maize, sugarcane, and pulses.

Tea is a cash crop that is grown in the hilly regions of the state. It is a major source of employment for the people of these areas. Rubber is also a cash crop that is grown in the hilly regions of the state. It is a major source of income for the people of these areas. Sugarcane is a cash crop that is grown in the plains of the state. It is a major source of sugar and ethanol in the state. Coconut and coffee are not cash crops of Bihar state.