Maragadha Valli Thaayar (Lakshmi) Kolavalvil Ramar Temple is a Hindu temple dedicated to Vishnu located 19 km away from Kumbakonam, Tamil Nadu, India on the Kumbakonam-Chennai highway in the South Indian state of Tamil Nadu.

Constructed in the Dravidian style of architecture, the temple is glorified in the Nalayira Divya Prabandham, the early medieval Tamil canon of the Alvar saints from the 6th–9th centuries CE.

It is one of the 108 Divya Desams dedicated to Vishnu, who is worshipped as Kola Valvill Ramar and his consort Lakshmi as Maragathavalli.

As per the legend, Sukrachariyar, the demon guru, was against king Mahabali donating land to Vishnu in the form of a Brahmin.

Brahma, the god of creation informed Mayan that Vishvakarma attained betterment as he built Vaikuntha, the abode of Vishnu on account of accomplishments in a previous birth.

[8] The temple is counted as Vaishnava Sukra Kshetra as Vishnu appeared as a beautiful deity to please his devotee Shukra (Venus).

It is believed that Vishnu appeared in Kalyana Kolam (marriage posture) to Parasarar, Markendeyar, Mayan, Brahma, Sukran and Bhudevi.

[6] The temple is revered in Nalayira Divya Prabandham, the 7th–9th century Vaishnava canon, by Thirumangai Alvar in one hymn.

[8] Vishnupathi Punniya Kalam, an auspicious time during the first days of Tamil months of Vaikasi, Avani, Karthigai and Masi is celebrated in the temple seeking divine auspices from Garuda.