Another of the conduit - held by one of Lord Shiva's Bhootha GaNa( soldiers).He is holding a conch in his hand and blowing it. These Bhootha GaNaas are always portrayed as being short and chubby!!!
If you look carefully on the stone wall on either side of his head, you can see letters having been carved. Invariably, these talk about the history, lands / jewels given to the Temple etc. etc. Very very rarely one finds the names of the sculptors here.