Coming to India, almost every cuisine is spicy for sure. At least I don’t know of one that is not. Indians grow up immersed in spicy food and can’t live without it. And to be honest once your palette gets used to spicy flavor it’s hard to go back to bland food. Anecdotally I’ve heard many westerns complain about blandness of their food once they are used to Indian flavor.
Very few Indian cuisines dual up “hot” knob. Andhra Pradesh cuisine is an example of that. It’s almost at the limit of not killing the flavor.
So to summarize about India, we almost universally love spicy food. Some of us like it hot too