Mankeshwar Nath Mahadev Mandir is a Hindu temple dedicated to Shiva in Madhia Math, also known as Madhia Dham, Sonbarsa block, Sitamarhi district, Bihar, India. It is a legendary temple associated with the epic Ramayana. According to legend, the temple was established by Shravana Kumara before the birth of Rama. It is said that Shravana Kumara installed a Shivalinga in the temple known as Baba Mankeshwar Nath Mahadev. The temple is popular among Shiva devotees for performing Jalabhisheka on the Shivalinga during the festival of Sawan Sombari.