Maruthoor Karthyayani temple is located around 3 km from Thrissur town in Kerala. There are no annual festival which involves kodiyettam and arattu. The main festival is observed on the Karthika nakshatra day in Vrischikam month.
This temple is one among the 108 Durga temples in Kerala. It is believed that the prathishta in the temple was performed by Parashurama. Marutha Muni had performed the puna prathishta (re-consecration) in the temple.
The main sanctum sanctorum is square shaped and the deity faces east. In the northeast corner of the temple there is a prathishta of Maruta Muni.
It is believed that the temple once belong to Namboothiris.