During Siba Singha's reign, the chief public works were the construction of Dhai Ali and the tanks and temples at Gaurisagar, Sibsagar and Kalugaon. About south west of Sivasagar town by the side of National Highway-37, Bar Raja Phuleswari Konwari, the first wife of king Siba Sngha built three temples - Shiva dol, Vishnu dol and Devi dol on the bank of a big tank covering an area of including the banks. This big tank was dedicated in the name of 'Gauri' or 'Durga' for which it is known as Gaurisagar tank and the entire place is now known as Gaurisagar. She also had dug the Borpatra tank at Kalugaon beside the historical Jerenga Pathar in memory of her brother who happened to be a Borpatra Gohain during her regime. On the north-eastern side of that tank two temples, namely Bishnu Dol and Jagadhatri Dol were constructed on the bank of the tank named as Lakshmisagar Pukhuri. It was during his second wife Bar Raja Ambika's rule the Sibsagar tank, Bar Pukhuri, situated within the heart of Sivasagar town was dug. On its banks three temples were built in 1734 - the Sivadol, the Vishnudol and the Devidol.