Which one among the following is not true with regard to Rig Veda Samhita ?

The Rig Veda Samhita contains approximately 300 non-Indo-European words, reflecting linguistic interactions with local populations [t1]. It extensively documents the 'Dasarajna' or Battle of Ten Kings [c2][t4]. In this historical conflict, the Bharata chief Sudas, belonging to the Trtsu family, fought against a confederacy of ten tribes on the banks of the Parushni (Ravi) river [c2][t3][t7]. The confederacy included tribes such as the Purus, Yadus, Turvashas, Anus, and Druhyus [t3]. Crucially, the Purus did not side with Sudas; rather, they were one of the primary defeated clans within the opposing confederacy [c2][t3]. Some historical interpretations suggest the Bharatas themselves were a sub-branch of the Purus, but in the context of the Dasarajna battle, the Purus were the leading enemies of Sudas, making the statement that they 'sided with Bharata' incorrect [t2][t6].

Sources

1. [1] History , class XI (Tamilnadu state board 2024 ed.) > Chapter 2: Early India: The Chalcolithic, Megalithic, Iron Age and Vedic Cultures > Polity and Political Clashes > p. 24