Which political leader forcefully raised the issue of reservation for Backward Castes in Bihar for the first time?

Karpoori Thakur was the first political leader in Bihar to strongly advocate for reservation for Backward Castes.

As Chief Minister of Bihar (1977–79), he implemented the Karpoori Thakur Formula, which introduced job and educational reservations for the Other Backward Classes (OBCs).

This was a historic step and laid the foundation for backward caste politics in Bihar.

Thus, the correct answer is Karpoori Thakur.

Karpoori Thakur is popularly known as “Jan Nayak”.

His reservation formula divided OBCs into Most Backward Castes (MBCs)

His policy later influenced the Mandal Commission recommendations.