The Sree Krishnaswamy temple at Ambalapuzha
dedicated to Parthasarathy was established by the Chembakasserry
Pooradam Thirunal-Devanarayanan Thampuran in the year 790 M.E. He
offered his state to Sree Krishna and ruled the country as his regent
after assuming the name of Deva Narayana.
The Arattu festival of this temple commences
with the flag hoisting ceremony on the Atham day in Meenam (March-April).
The important Arattu Utsavam, however, takes place on the Thiruvonam
day in Meenam.
'Velakali' is an important feature of this
festival. The famous Ambalapuzha Palpayasam (a milk pudding of exceptional
sweetness) is the important offering of this temple.