 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.