Complex sentence: After the capture of Burki Indian advance continued towards Dograi a town in the immediate vicinity of Lahore and went on to capture Dograi as well on 20 September, thus bringing the main city of Lahore in range of Indian tank fire.
Split into simpler sentences: After the capture of Burki, the Indian advance continued towards Dograi, a town in the immediate vicinity of Lahore. They subsequently went on to capture Dograi on 20 September, thus bringing the main city of Lahore within range of Indian tank fire.