And most of those times it remained in India. Except for the short time Nadir Shah had it, and even then it probably stayed in Afghanistan for most of the time.

Unfortunately, London is very far from India. A few time zones away.

Finally, you are okay with stealing as long as a European is doing it, right? then you can find multiple excuses. Because you have been taught some version of " the morally upright Europeans brought civilization and decency to the barbarian Asians and Africans".

I will end with a quote from Disraeli, the Prime Minister of the UK, to MPs who criticized his Jewish heritage.  It is appropriate for people from India too:-

Yes, I am a Jew, and when the ancestors of the right honorable gentleman were brutal savages in an unknown island, mine were priests in the temple of Solomon.