How did foreign invaders assimilate into Indian society and contribute to cultural confluence?

• Invaders like the Indo-Greeks and Kushanas adopted Indian gods, languages, and customs.
• They built monuments and pillars, like the Heliodorus pillar, praising Indian deities.
• Their art blended Greek and Indian styles, seen in Gandhara and Mathura schools of sculpture.

These cultures enriched Indian society, adding new ideas, art forms, and coins with Indian themes.