Nepotism works very well in a variety of fields.
Look at many of the current crop of politicians. They had rich and powerful dads. If not for nepotism, do you think Rahul Gandhi would be anywhere near the top of a large political party?
It is quite rampant in business too. Walk to a market and you will find multigeneration family working in the same busines...
Almost every part of this question is false. Almost nobody likes invasions. India is far less invaded than Afghanistan - Darius, Alexander, Genghis Khan and others who invaded Afghanistan could not do so in India. Also, India was not ruled by the British for 400 years — more like 160 years.
The start of East India Company’s invasion is from