Pandupol is a popular temple excursion in the Sariska area, set among rocky Aravalli hills southwest of Alwar. The shrine is dedicated to Hanuman and is tied locally to stories from the Mahabharata, which gives the place both pilgrimage and landscape appeal.
It is most satisfying as part of a Sariska outing rather than as a standalone trip from Alwar. Check access rules before going, since routes through protected areas can be restricted or vary by day.