Sura Kingdom
The Sura (Sudra) Kingdom is mentioned as one of the kingdoms or provinces of ancient India (Bharata Varsha) as per the epic Mahabharata. They were mentioned along with another tribe called the Abhiras along the banks of Saraswati River where it dried up in the desert. They were dominated by the Abhiras, sometimes referred to as Surabhira  The Balarama visited this place during his pilgrimage along the partially dried up river Saraswati. After this place, only a dried up river bed existed and the desert or the Maru region began. According to Mahābhārata (IX.36.) Sura lived in the region of Vinasana, in the vicinity of Abhiras (tato vinaśanam rājanājagāma halāyudhaḥ śūrābhirān prati dveṣād yatra naṣṭā sarasvatī).