Re: which or who or what ... more than 1.1 crore or more than 1.1 crores
Who is England's national animal?
Animals are not humans, so we would not use a personal pronoun.
What is England's national animal?
Correct. Of all the animals in England, what do the English regard as their national animal?
Which is England's national animal?
"I know the British have the bulldog spirit, and St. George slew the dragon and I've seen that on flags, but I've also seen a red lion on flags. Bulldog, dragon, or lion - which (one) is the actual national animal?"
'which' is used in questions when the person must choose from some given alternatives.
"Everest, Mont Blanc, and Ben Nevis are all mountains. Which one is in the UK?"
Looking at a litter of puppies, ready to be separated from their mother and become pets; and the person asks the prospective new owner:"Which one would you like?"
"What do you want to be when you grow up?" (of all the jobs and professions in the world).
"Architect or Structural Engineer - which would you rather work as?"