Thrissilery Shiva Temple is situated at about 19 km from Thirunelli, on the main Mananthavady-Mysore Highway. This temple is dedicated to Lord Shiva and has an intrinsic link with the Lord Vishnu Temple at Thirunelli. Travellers coming to Thirunelli Temple to pay homage to their ancestors also visit the Thrissilery Temple.Papanasini water flows through this temple, which houses a small shrine of Jala Durga. The water never dries and it is believed that the shrine was installed here by Parasurama, who was an incarnation of Lord Vishnu. From Thirunelli, taxis or auto rickshaws can be hired to reach this temple, which is 4 km away from Kartikulam. The icons and carvings in this sanctuary display excellent work of art. This staggering sanctuary of rather immaculate compositional extents is inseparably connected with the Vishnu sanctuary at Thirunelly. It is trusted that the execution of tribal customs at Thirunelly ramain unfinished unless took after by offerings at this sanctuary. Inside the premises there is additionally a holy place gave to Jala Durga, accepted to have been introduced by no less a personage than the unbelievable Parasurama. There are numerous myths associated with the sanctuary tank here, which inquisitively enough never dries away! The sanctuary is 50 Kms. far from Kalpetta, 25 Kms. far from Sulthan Bathery and 41 Kms. far from Mananthavady.