Mamleshwar Temple stands on the south bank of the Narmada, close enough to the main shrine to be visited in the same circuit but calmer in feel. Its stonework and courtyard reward a slower look after the crush around Omkareshwar Temple.
Do not skip it if you are here for the pilgrimage rather than just the name. The two temples are part of the same ritual geography, and the walk between them is part of the experience.