Complex sentence: Two battalions of the 17th Dogra Regiment (2nd and 3rd Battalions) also fought in the Malayan Campaign and, after the Fall of Singapore, a large number of the captured troops later went on to join the Indian National Army.
Split into simpler sentences: Two battalions of the 17th Dogra Regiment (the 2nd and 3rd), also fought in the Malayan Campaign. After the Fall of Singapore, a large number of the captured troops later went on to join the Indian National Army.