When is India🇮🇳 least crowded by visitors (especially Tamil Nadu) and vice versa? Any estimates?

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I know India is metaphorically asleep right now as it is 3:42 am. 🙃
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A website says 4:42 am, perhaps it is in daylight saving hours or so 🤔... Previously India was Not this many hours different to my country.
When is India🇮🇳 least crowded by visitors (especially Tamil Nadu) and vice versa? Any estimates?
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