Complex sentence: Accompanied at first by a monk named Pushyavuddhi, Buddhamitra and Bala began to work in about 117 in the Kushan areas, and together, with the help of the region's Satraps Vanaspara and Kharapallana, they built monuments at Sravasti and at Sarnath.
Split into simpler sentences: Accompanied at first by a monk named Pushyavuddhi, Buddhamitra and Bala began to work in the Kushan areas in about 117. Together, with the help of the region's Satraps Vanaspara and Kharapallana, they built monuments at Sravasti and at Sarnath.