Mahakalanathar , Bayakshambikai
Thirumakalam Mahakalanathar Temple is a Hindu temple located at Thirumakalam in Tiruvarur district, Tamil Nadu, India.The presiding deity is Shiva. He is called as Mahakalanathar. His consort is known as Bayakshambikai.
It is one of the shrines of the 275 Paadal Petra Sthalams - Shiva Sthalams glorified in the early medieval Tevaram poems by Tamil Saivite Nayanar Tirugnanasambandar.

Vimana of the presiding deity
Tirugnanasambandar describes the features of the deity as:
கொலையார் மழுவோடு கோலச் சிலையேந்தி
மலையார் புனலம்பர் மாகா ளம்மேய
கிளரும் சடையணணல் கேடில் கழலேத்தத்
தளரும் முறுநோய்கள் சாருந் தவந்தானே.
