At the southern side of the temple, outside the Nalambalam and just inside the pradikshinavazhy
is the shrine of Sastha. This is the only shrine outside the Nalambalam. The shrine
of Edatharikathu Bhagavathy is considered to be in a separate compound with a small
passage separating it with the main temple. The idol made of dark granite is about
a meter in height. There is a huge granite stone in front of the shrine, placed
in an inclined position, for breaking coconuts, considered very dear to Sastha.
A small deepasthambam is there in front of the shrine. During the mandala season,
lot of devotees take darshan at this shrine. In front of the shrine arrangements
are made for "malayidal" and "kettunira" for Sabarimala pilgrimage
during Mandala season.