Step 1: Identity of the Tiger King.
The Tiger King was the ruler of Pratibandapuram, also known as Maharaja Sir Jilani Jung Jung Bahadur.
Step 2: Reason for the title.
At his birth, astrologers predicted that his death would come from a tiger. To prove the prophecy wrong and to assert his power, he started killing tigers. He killed ninety-nine tigers during his lifetime.
Conclusion:
He came to be called the ‘Tiger King’ because of his obsession with killing tigers to defy the astrologer’s prediction. Ironically, he ultimately died because of the hundredth tiger, fulfilling the prophecy.