First i would like to provide you information that . In Chitwan National Park , we have 50 Mammals in which 694 rhinos ( 2022 Census ) , 128 tigers ( 2022 census ), Bull Elephants , 2 types of crocodiles , 4 types of deers, monkeys , leopard, wild-boars , sloth bears and other 700+ species of birds . It's one of the richest national parks in the world because it's richness in animals and plants . Regarding the spotting, 99% of our guest actually get to see Rhinos, crocodiles, 4 types of deers , many other animals, and many many species of birds . However nothing is guaranteed since we are traveling in Jungle . Regarding tigers , bears, yes its difficult to spot it but during the March , April , May June its very high chance to spot tigers . For spotting tigers, there is high chance to sport it if we go for full day jeep safari which we go deep down the jungle.