Is Indian cuisine always vegetarian-dairy

No, it is not. Because of Hindu religious rules, meat is prohibited and many Indians therefore eat vegetarian food only. However, not all Indians are Hindus. Many are Sikhs, Christians, Buddhists, Muslims or even Atheists. As a result, there are Indian dishes that involve meat. Try Chicken Tikka Masala.

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No it is mis-understanding (like many thinks that all Indians speak Hindi, but the fact is only 35 % speak it). comming back to the food, 30 to 35% of people are vegeterians and the rest are non vegeterians.

I defer on the previous answer, I am a Hindu and i eat non-veg. Majority of Hindu's eat Non-Veg. It is noting to do with the religion.