Underline the changes in the field of society and economy from the rig vedic to the later vedic period.

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• Rajghat finds from decades-old digs shed new light on ancient Kashi

  Rajghat's earliest layers, from about 800 BCE, belong to the late Vedic age that led into the Mahajanapadas; its iron objects and early city growth illustrate the economic changes the question asks about.