The Vamsa Brahamana[4] of the Sama Veda refers to one Rsi Madragara Shaungayani as the teacher of Aupamanyava Kamboja.
As the name itself suggests, the risi Madragara Shaungayani belonged to the Madra tribe, i.e. the Uttaramadras who inhabited the northernmost reaches of Punjab.
[12] Pt Bhagva Datta points out that Dr G. Opart had referred to a nirukta (etymology) whose authorship he attributes to a certain Upamanyu.
[13] Commenting on the Vamsa Brahmana list of Vedic teachers, Albrecht Weber writes: "One fact deserves to be especially noticed here, namely, that several of the teachers mentioned in the Vamsa Brahmana, by their very names, points us directly to the north-west of India, e.g. Kamboja Aupamanyava, Madaragara Saungayani, Sati Aushtrakshi, Salamkayana and Kauhala".
[14] And commenting on the same list, R Morton Smith also writes: “The names Kamboja Aupamanyava, Sati Austraksi and Madragara Saungayani suggest a North-west connection for the main branch of the Vamsa Brahmana.