Question

What two political changes in the Later Vedic period are suggestive of the disappearance of tribal polity​

Answer 1

With the progress of Aryan settlements in the eastern and southern part of India, the small tribal states of Rig Vedic period replaced by powerful states. Many famous tribes of Rig Vedic period like Bharatas, Parus, Tritsus and Turvasas passed into oblivion and new tribes like the Kurus and Panchalas rose into prominence. The land of the Yamuna and Ganga in the east which became the new home of the Aryans rose into prominence.