Rudrasagar lake and temple were built by Ahom king Lakshmi Singha in memory of his father King Rudra Singha. It is located about 8km from Sivasagar. The temple follows the charectristic Ahom architecture with a tall dome and pointed towers at the centre as well as on the four sides. It lies on the bank of the lake and offers a very peaceful and serene atmosphere. The space around the temple have been nicely landscaped with lawns and greenery, which would encourage one to take a stroll around and enjoy the peace and quiet.