Complex sentence: Keshav Bhawan, the monsoon pavilion is a single-storeyed baradari placed on an octagonal base, and it stands right next to the Rup Sagar tank.
Split into simpler sentences: Keshav Bhawan, the monsoon pavilion, is a single-storeyed baradari placed on an octagonal base. It stands next to the Rup Sagar tank.