Sivasagar previously spelled Sibsagar, the ocean of Lord Shiva, is a town in the Sivasagar district in the state of Assam in India, about 360 kilometres (224 mi) north east of Guwahati. It is the district headquarter of the Sivasagar district.
Apart from its history, culture, and tanks, it is also famous for its Ahom Palaces and Monuments. Now it is a multicultural town. Sivasagar today is also an important center for oil and tea trading