I don't know the results of a Vedic religion arriving in China at such an early date. How it will affect the development of Sinic culture and civilization? Will Lord Buddha or a similar person be born in China? Will both Buddhism and Confucianism develop side by side? Confucianism will lose its advantage of being the native religion in this case.
In India it could lead to a simpler culture, mainly Dravidian in nature. India could become a very large version of the present Tamilnadu or South India under the circumstances. Indian culture will not be as diverse as in OTL and Dravidian languages will dominate. Tamil might develop as the lingua franca, if not the majority or sole language.
In India it could lead to a simpler culture, mainly Dravidian in nature. India could become a very large version of the present Tamilnadu or South India under the circumstances. Indian culture will not be as diverse as in OTL and Dravidian languages will dominate. Tamil might develop as the lingua franca, if not the majority or sole language.