Mannadi is a village in Kadampanad grama panchayat at Adoor Taluk, Pathanamthitta District of Kerala, India.

Velu Thampi Dalawa (Velayudhan Chempakaraman Thampi) (1765–1809) was the Dalawa or Prime Minister of the Indian kingdom of Travancore between 1802 and 1809 during the reign of His Highness Maharajah Bala Rama Varma Kulasekhara Perumal.

He had committed suicide at Mannadi Temple, to avoid capture by the British.

The ancient travancore culture, the coins and household equipments used then are showcased there.

This article related to a location in Pathanamthitta district, Kerala, India is a stub.