What is sannithi?

Some articles on sannithi:

List Of Hindu Temples In Malaysia - East Malaysia - Sabah
... Sri Sithi Vinayagar Temple(with Murugan sannithi)Sandakan - Sabah Thiru Murugan Temple -Pangkalan Udara Labuan, Membedai, Wilayah Persekutuan Labuan Sri Subramaniar Temple - Kem Lok Kawi ...