The correct answer is: 1948.
Ambala Air Force Station is an Indian Air Force base located in Ambala, Haryana, India. It is one of the oldest air force stations in India and was built in 1948. The station is home to a number of squadrons of fighter aircraft, including the MiG-21 Bison and the Sukhoi Su-30MKI.
Option A: 1948 is the correct answer.
Option B: 1950 is incorrect. Ambala Air Force Station was built in 1948, not 1950.
Option C: 1957 is incorrect. Ambala Air Force Station was built in 1948, not 1957.
Option D: 1960 is incorrect. Ambala Air Force Station was built in 1948, not 1960.