Lord was named Kalva by Parvati as He overwhelmed Lakshmi speaking
to Parvati on the banks of Pancha Theertham. The Lord took the form
of Nindra(Standing), Erundha(sitting) and Kidanda(Sayana) postures
acceding to Parvati's plea. These Sannidhis on three tiers are on
Northern end of the tank at Kamakotipuram. As per purana, Shiva
cursed Parvati due to some differences of opinion, and Parvati prayed
and meditated on Lord Vamana at this place standing on one foot.
Parvati, absolved of the curse was named Kamakkshi.
Not much is known about the original Kshetra, Pushkarni etc. but
one can have darshan of the Lord at the Kamakoshtipuram Kamakshi
temple at Big Kancheepuram.
Thaayaar - Anjilaivalli Naachiyaar.
Theertham - Nithyapushkarini.