Mamai Dev (also known as Mamai Pandit and Guru Mam) was a religious teacher or guru of Maheshwari Meghawal Samaj and Raajguru of Jadeja Dynasty. He was born in India in the 11th - 12th century. He is considered to be an incarnation of Lord Brahma and his religious identity describe as "Pandh Mamai, Jeev Varma Jo Karam Ameyarakh" means his body name is Mamai and his soul is Brahma in the religious texts of Baarmati religion of Maheshwari Samaj. He preached religion to the Meghwar community of Saurashtra, Kutch of Gujarat and Sindh, in present day Pakistan. He also preached to the poor Sinbhariya Meghwar for Dharma. He described and formulated ancient Barmati Panth. His tomb is located in the Thatta District in the Sindh province of Pakistan.[1]
He lived during the periods of Jadeja Samma rulers of Kutch and Samma rulers of Thatta. He composed hundreds of Bārmati Ginans in Sindhi, Kutchi and Halari languages and these sacred verses are called Māmai Dev jo Ginān. He died in Thatta and at the same place a shrine called Mamai Dev Astan was constructed. Every year, pilgrimage is done by devotees to this shrine to commemorate his death[2]