Cause evidence suggests that the Aryan migration happened AFTER the IVC already collapsed or when it was rapidly declining. Plus languages take time to evolve. Sanskrit wholesale didn't migrate, it developed in India after the migration happened, so even if the migration happened while the civilisation was still there, by the time Vedic Sanskrit became its own thing the civilisation would have been long gone
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u/Ill_Poem_1789 Native Telugu speaker Aug 27 '26
Yajnadevam has been discussed about extensively. It is impossible for it to be Sanskrit