It was during our visit to Bhimtal, we happened to reach this temple when we were just walking around the lake in the evening.
We saw a temple and thought of visiting it. On going close we came to know it is a Shiv Temple.
This temple is known to be an ancient temple built by Bhima of Pandavas during their Vanavas period, when Bhima visited the Himalayas. The lake was also created as he made a hole using his mace in the mountains, hence it is known as Bhimtal.
The temple is small and was not much crowded as not many people know about it.
If you happen to go Bhimtal, do visit this temple.