Sadak-Arjuni is a taluka in Arjuni Morgaon subdivision of Gondiya district, Maharashtra, India It is one of the eight Talukas located in Gondia district.
The Mama-Bhasha fair is held in the villages of Satalwada (Sakoli taluka) and Giroli-Heti belonging to Sadak-Arjuni taluka. The fair is held on 1 and 2 January. In 2011, this fair was attended by 1 lakh persons.