Explanation:

Bhikhari Thakur was Bhojpuri writer who has written several plays, poems and essays on social issues like women empowerment, poverty, migration, caste system etc. Bidesiya and Gabarghichor are one of the most famous plays written by him. Heera Dom, a Bhojpuri poet is credited for creating first poem on dalits. Rameshwar Singh Kashyap wrote the famous play Loha Singh. Raghuveer Narayan wrote the famous poem Batohiya.