Identify the person who headed the second Backward class Commission.

NCERT (2025-26): “The Other Backward Classes … The southern states had a long history of backward caste political agitation that had started in the early twentieth century. Because of these powerful social movements, policies to address the problems of the OBCs were in place long before they were discussed in most northern states. The OBC issue returned to the central level in the late 1970s after the Emergency when the Janata Party came to power. The Second Backward Classes Commission headed by B.P. Mandal was appointed at this time. However, it was only in 1990, when the central government decided to implement the ten-year old Mandal Commission report, that the OBC issue became a major one in national politics.…”