Masi maham is an annual event that occurs in the Tamil Month of Masi (Feb-Mar) in the star of Magam. Once in twelve years, when the planet Guru (Jupiter) enters Simha (Leo) sign, the Kumbamela festival of South India is celebrated at Mahamaham Tank of Kumbakoanm. Every Year on that time Garudaseva Festival is performed in Sri Chakrapani swamy Temple, Sri Rajagopala Swamy Temple and Sri Varagha Swamy Temple at Kumbakonam. This is the special festival in Kumbakonam Vishnu Temples. Visit and watch the video of this festival
I wonder whether my short Thread in the Mayyam Hub Website on "Maasi Maham" will be of interest to you. If interested follow the URL given below to read this Thread
"In the 27th year (A.D.1045) of the Chola Emperor Rajadhirajadeva - 1 (A.D.1018-1054), a gift of money was made by members of the (village) assembly of Manali alias Singavishnu Chathurvedimanagalam. The money was deposited for conducting the festival of "Maasi Maham" at Thiruvottriyur Adhipurisvara Siva temple
So Manali is that old - Singavishnu period.
The enarby Thirukkattuppali is also mentioned in Pallava Copper Plates.