More wild ass speculation

The eminent historians featured on the pages of chindu keep repeating that discredited theory on aryan invasion. If you care to read papers other than this rag publications, you will see that:
the Indus civilisation is being regarded as the Vedic civilization,
it is a continuous civilisation without any evidence of invasion,
the so-called dravidian civilization is the same as the vedic civilization.
But the dravidian parties want to propagate the myth of a separate identity. It has paid them rich political dividends so far. Now they are institutionalizing it through some awards too.
The Hindu : Opinion / Interviews : Deciphering the Indus script: challenges and some headway

Rigvedic hymns often speak of horses and horse-drawn chariots, and the horse sacrifice, ashvamedha, is among the most prestigious Vedic rites. The only wild equid native to the Indian subcontinent is the wild ass, which is known from the bone finds of the Indus Civilisation and depicted (though rarely) in its art and script. The domesticated horse is absent from South Asia until the second millennium BCE.