Complex sentence: In the reign of Mahmud Shah, Maharaja Sawai Jai Singh was made the Governor of Malwa, a great scholar of astronomy, he had the observatory at Ujjain reconstructed and built several temples.
Split into simpler sentences: In the reign of Mahmud Shah, Maharaja Sawai Jai Singh was made the Governor of Malwa. A great scholar of astronomy, he had the observatory at Ujjain reconstructed and built several temples.