Passage: Ambedkar was born on 14 April 1891 in the town and military cantonment of Mhow (now Dr. Ambedkar Nagar) in the Central Provinces (now in Madhya Pradesh). He was the 14th and last child of Ramji Maloji Sakpal, an army officer who held the rank of Subedar, and Bhimabai Sakpal, daughter of Laxman Murbadkar. His family was of Marathi background from the town of Ambadawe (Mandangad taluka) in Ratnagiri district of modern-day Maharashtra. Ambedkar was born into a poor low Mahar (dalit) caste, who were treated as untouchables and subjected to socio-economic discrimination. Ambedkar's ancestors had long worked for the army of the British East India Company, and his father served in the British Indian Army at the Mhow cantonment.

Question: What rank did Sakpal hold?
Subedar