Mention by Panini
V. S. Agrawala mentions that The craze for constituting new republics had reached its climax in the Vahika country and north-west India where clans consisting of as many as one hundred families only organized as Ganas, as in the case of 100 sons of Savitri establishing themselves as Kshatriya clan under Savitri-putras with the title of Raja applied to each one of them (Vanaparva 297.58, Karnaparva V.49, and Panini in Dāmanyādi group V.3.116).
V. S. Agrawala mentions Ayudhajivi Sanghas in the Ganapatha, which includes - Dāmanayādi' group (V.3.116) – The names which are supported both by Commentary on the Chandra and the Kashika are Aulupi, Audaki, Āchyutanti (or Achyutadanti), Kākādanti, Sārvaseni, Bindu, Tulabha (Kashika Ulabha), Mauñjāyana, and Sāvitriputra. Of these only the Sāvitriputras are mentioned in Mahabharata (Vanaparva, 297.85; Karnaparva, V.49) and should be located in the Punjab adjacent to Ushinaras. The Sarvaseni seem to be a branch of the Sarvasenas mentioned in the Śaṇḍikādi Gana (IV.3.72), like Gāndhāri-Gandhāra, Sālva-Sālveya. Kāra in Madrakāra meant army or troops, being an old Persian word. It is the same as Sanskrit Senā. The Madrakaras were a division of the Sālvas (IV.1.173), a significant name derived from their territory containing rich pockets of kāras or soldiery. This is just the idea of Sārvaseni also,
[p.447]: and it appears that this was the region of north Rajasthan, where we have already located the Sālva. This is confirmed by the Kashika counting it amongst three rain-less areas, viz. Trigarta, Sauvira, and Sārvaseni. Mauñjāyana (V.3.116, IV.1.99) seems to be Munjān in the upper Oxus region, the home of the Galcha dialect called Munjani (cf. Maunjayani in IV.1.73 gana). The Baijavāpi seem to be genuine reading in ganas.
Karna Parva/Mahabharata Book VIII Chapter 4 mentions Warriors who are dead amongst the Kurus and the Pandavas after ten days....Savitriputra have been mentioned in verse (VIII.4.47)... "the Mavellakas, the Usinaras, the Tundikeras, the Savitriputras, the Easterners, the Northerners, the Westerners, and the Southerners, have all been slain by Savyasachi". 
Savitri : The Madra princess
Tej Ram Sharma writes that the Jarttikas or Jartas (modern Jats) who spread over the whole of Punjab was responsible for the degeneration of the Madras.  The legend of Savitri and Satyavan is connected with the Madra country, for Savitri was the daughter of Asvapati, king of Madra. 
- V. S. Agrawala: India as Known to Panini, 1953, p.57, 430, 446
- V. S. Agrawala: India as Known to Panini, 1953, p.500
- India as Known to Panini,p.430
- India as Known to Panini,p.446-447
- मावेल्लकास तुण्डिकेराः सावित्री पुत्र काञ्चलाह, पराच्यॊथीच्याः परतीच्याश च थाक्षिणात्याश च मारिष (VIII.4.47)
- Personal and geographical names in the Gupta inscriptions/Tribes,p.146
- Buddha Prakash, Political and Social Movements in Ancient Punjab , pp. 113-14.
- Mahabharata, Vanaparvan, chaps. 291-8, pp. 509-23, Maharaja of Burdwan's Edition.
- Jats the Ancient Rulers (A clan study)/Jat Clan in India,p. 256