Kasimadom Ganapathi temple is located at Thiruvathukkal, Veloor, in Kottayam town, Kerala. The temple is dedicated to Ganapati or Ganesha. The annual Vinayaka Chaturthi festival in Malayalam Chingamasam is an important occasion in the shrine. Various pujas and rituals including homam and annadanam are part of the festival.
The temple has a square sanctum sanctorum facing east. There are no upa devatas and other structures. The temple is privately maintained.
Chathurthi (fourth day of a fortnight) is an important day in month in the temple.
The shrine performs various pujas for removing all kinds of obstacles.
Vahana puja is conducted regularly at the shrine.