Kalyaneshwari is one of the more visited Hindu pilgrimage sites of the western Bardhaman region, on the Barakar river just below Maithon Dam. The main image is a black stone Devi in a small, brightly-painted shrine, with the usual rim of subsidiary temples, banyan trees, and shops selling offerings.
For visitors it pairs naturally with a trip to Maithon — the two are within ten minutes of each other and most local drivers will offer both. Saturdays, Tuesdays and the Kali Puja week are when the temple is busiest; come early on a weekday for a calmer visit.