Indo-Aryan migration

The Indo-Aryan migration theory explains the introduction of the Indo-Aryan languages in the Indian subcontinent by proposing a migration from the Sintashta culture through Bactria-Margiana Culture and into northern Indian subcontinent (modern day India, Pakistan and Nepal). These migrations started approximately 1,800 BCE, after the invention of the war chariot, and also brought Indo-Aryan languages into the Levant and possibly Inner Asia. It was part of the diffusion of Indo-European languages from the proto-Indo-European homeland at the Pontic steppe, a large area of grasslands in far Eastern Europe, which started in the 5th to 4th millennia BCE, and the Indo-European migrations out of the Eurasian steppes, which started approximately 2,000 BCE.