Dravida Munnetra Kazhagam (DMK) and its allies observed one-day fast.
They observed fast in support of farmers protesting against the three farm laws passed by the Centre.
DMK president MK Stalin and Women's wing secretary of Dravida Munnetra Kazhagam, Kanimozhi were present along with other party leaders.
The one-day fast was observed in Tamil Nadu's Chennai on December 18.
