The Maharaja decided to get married primarily because he had killed seventy tigers in his own kingdom, which resulted in the tiger population becoming extinct there. To continue his goal of killing a hundred tigers, he needed to marry a girl from a royal family of a state that still had a large tiger population. This marriage was a strategic way to access a new territory with more tigers to hunt. Additionally, the Maharaja was of marriageable age, and the decision aligned with royal duties, cultural expectations, and his personal desires to fulfill his tiger-killing mission and secure a legacy.