Kudassanad Thirumani Mangalam Mahadeva temple is located near Pandalam in Pathanamthitta district, Kerala. The shrine is dedicated to Shiva and Vishnu. The annual festival in the temple begins on Thiruvathira nakshatra day in Makaram month.
This is a unique temple with two sreekovil and single chuttambalam. The shrine has two kodimaram or flagpost. Both the deities have equal importance.
The annual festival in the temple is famous for Melam, caparisoned elephants, pujas and rituals.
The shrine also observes Mahashivratri and Ramayana Masam.