Which member of the seven-member Drafting Committee had previously served as the Prime Minister of the princely state of Jammu and Kashmir between 1937 and 1943?

Explanation

Sir N. Gopalaswami Ayyangar was a distinguished administrator who served as the Prime Minister of Jammu and Kashmir before joining the constitutional engineering machine. This specific administrative background later heavily influenced his pivotal role in drafting Article 370 within the temporary provisions framework.