haridhra nadhi is the temple tank of the rajagopalaswamy temple of the famous town of mannargudi of thiruvarur district. the rajagopalaswamy temple is a vaishnavite temple of the deity rajagopalaswamy(krishna). this is the place where sages performed penance for the darshan of lord. this theertha is considered as jamuna river-yamuna- and is praised as haridra nadhi. the float festival is celebrated here on aani poornima day in june–july.