Yes, but if you go to another part of India you'll also be served a differently prepared dish, it will never be exactly "just like home". It's not just in India

Yes, but if you go to another part of India you'll also be served a differently prepared dish, it will never be exactly "just like home". It's not just in India, every cuisine has regional variations, say in Italia there's a big difference in specialties between say Campania and Veneto. So how come that is OK, but emigrants have to make the food just like your mom makes or it's called fake?