Raghu Bahavan
The main deity of the temple Naganatha swamy is Nageswarar - Shiva in Linga.
There is an individual shrine for Raghu Bahavan (one among Navagrahas). Hence this temple is called Raghusthalam.
Shri Lakshmi - Shri Girigujaambaal - Shri Saraswathi
There is another shrine for Amman, where Devi is seen in three forms as Lakshmi(godess of wealth), Girigujaambaal(sakthi), and Saraswathi(godess of knowledge).