Who is known as the "Architect of Indian planning"?

Harrod Domar Mahalanobis Shankar Acharya B.R. Ambedkar

Mahalanobis

Prasanta Chandra Mahalanobis was a famous statistician from Calcutta who contributed to the 2nd five year plan. Due to his immense contribution in 2nd plan, he is known as the "Architect of Indian planning". His plan had laid down the basic ideas regarding goals of Indian planning.