Neeramankara Mahadev Temple, situated near Pappanamcode in Thiruvananthapuram, is an ancient and historically significant Siva temple dating back to the 14th century, with a legacy of over 700 years. The temple is constructed in the Sandhara style and is distinguished by its rare circular granite sanctum topped with an octagonal brick śikhara, reflecting the richness of traditional Kerala temple architecture. The temple is presently under the protection of the Archaeological Survey of Kerala, highlighting its heritage value. Devotees strongly feel the powerful spiritual presence of Lord Siva at this sacred site. Though the traditional nalambalam has collapsed over time, the sanctum and its architectural essence continue to inspire
more reverence. Historically, the temple had a close ritual connection with the Karamana River. It is believed that an Aarattu Kadavu, known as Thevar Kadavu, existed behind the temple on the riverbank, where the ceremonial Aarattu of Lord Siva was conducted. According to local tradition, this ritual continued until the 1970s. Remnants of the kadavu are said to still exist, as recalled by elderly residents of the area, including long-time inhabitants living near the site.