Samayapuram Mariamman Temple is a Hindu temple in Samayapuram in Tiruchirappalli in Tamil Nadu, India. The main deity, Samayapurathal or Mariamman, a form of supreme mother goddess Durga or Maha Kali or Aadi Shakthi, is made of sand and clay like many of the traditional Mariamman deities is considered as most powerful Goddess, and hence unlike many other Hindu deities there are no abhishekams (sacred washing) conducted to the main deity, but instead the “abishekam” is done to the small stone statue in front of it.
It is believed by the devotees that the Goddess has enormous powers over curing illnesses and hence, it is a ritual to buy small metallic replicas, made with silver or steel, of various body parts that need to be cured, and these are deposited in the donation box.
Devotees also offer mavilakku, (Tamil – மாவிளக்கு) a sweet dish made of jaggery, rice flour and ghee.  Offerings of raw salt is also made to the Goddess by the rural devotees.
The temple attracts thousands of devotees on Sundays, Tuesdays and Fridays, the holy days for Mariamman. Samayapuram is the second most wealthy (in terms of cash flows) temple in Tamil Nadu after Palani.