Kilimarathukavu temple is known for kailasa insight with almost all devas who are supposed to be in kailasam.

It is rare that one temple is having two Shiva deities. In the main sreekovil one Lord Shiva deity and Sree Parvathy deity is there. It is said that the Shiva here is “Ardhanarishvaran”. And another deity of Lord Shiva here is “Mahanadan”. Sivarathri is the main festival for Lord Shiva. On the same day after athazha pooja Lord Shiva is received outside the main sreekovil and is placed in a specially designed mandapam outside the sreekovil. On the same day devotees donate “para” for Lord Shiva which is a ritual the temple.

Sree Parvathy Devi is on the same sreekovil near to Lord Shiva. “Kunkumam” pooja is special for Parvathy Devi. Navarathri is the main festival for Sree Parvathy Devi. As a part of Navarathri, Devi will be dressed up on different forms of Devi on each day and on vijayadhasami it is Lord Sree Saraswathi Devi. On the same day is Vidhyarambhan when hundreds of kids will start their first writing lessons which will be led by Temple Thandhri ” Sree Kokkalathu Madathil Madhavar Shambhu”.

As in Kailasam near to Lord Shiva and Sree Parvathy Devi is the place for Lord Murugan (Subrahmanyan). The main festival is Skandha Shashti and Shashti on every month. All devotees gets facility to fast during the same days. On normal Shasti days which is on every month devotees will get prasadam (padachoru and payasam) from temple by 10 am. On Skandha Shashti (Shashti on Thulam Malayalam month) devotees will get prasadam from 7 am onwards. The speciality in the temple is that every quantity prepared as prasadam will be taken for pooja. Kumarasukthapushpaneali is the main pooja for Lord Murugan. Another pooja for Lord Murugan is Vettila donation. Devotees can donate one Betel leaf(Vettila), one arecanut(packu), one lemon and one coin on every Tuesdays. This can be donated on one to one hundred and eight weeks continuously.

May be it is the largest Shastha (Lord Ayyappa) deity in temple. It was proved in devaprashnam that it was largest deity of Lord Shastha and during temple construction the old deity was found as the supporting evidence for the proof. It is believed that for sanidhosham devotees can pray to Lord Shastha. Neeranjanam is the pooja done to Lord Shastha on every Saturdays with one coconut, ellukizhi and oil. Mandala vilakku is the main festival for Lord Shastha starting from vrischikam 1 to makaram 1.

 Lord Hanuman or Anjaneya is the rarest deity in southern kerala. The temple is situated in the middle of temple pond.

Lord Ganapathi is near to Lord Shiva and Parvathy. Ganapathi homam and ashtadravya mahaganapathihomam are the pooja for Lord Ganapathy. Unniyappam is the prasadam for Lord Ganapathy.