About 800 kilometres away, a strong earthquake struck Myanmar.
“We felt the tremor very strongly, but all is fine,” said British Deputy High Commissioner Scott Furssedonn-Wood, who was staying in the same 12-cottage jungle resort as Prince William and his wife, Kate Middleton.
Accompanied by wildlife rangers, the royal couple used large bottles of milk to feed the animals in Kaziranga National Park.
The park is also home to water buffalo, endangered swamp deer, tigers and two-thirds of the world’s population of Indian one-horned rhinoceroses.
Prince William and Kate saw rhinos, wild boars, buffalos, hog deer and a variety of birds, according to V.S. Bhaskar, a top Assam state government official.
“They enjoyed the trip quite a lot. They were very happy,” he said.
Prince William reportedly asked the forest rangers about the conservation challenges they face.
The couple has already visited Mumbai and New Delhi on a week-long tour of India, which included a game of cricket.
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Their visit has sparked a lot of excitement in India and even a viral campaign started by a 93-year-old.
WATCH: #WillKatMeetMe: 93-year-old Indian man asked the internet to help him meet Kate Middleton
The royal couple is set to spend Wednesday night in the Kaziranga National Park area, and will leave for neighbouring Bhutan on Thursday.
They are travelling without their two children, two-and-a-half-year-old Prince George and 11-month-old Princess Charlotte.
They had taken Prince George to Australia with them in 2014 on their last royal tour.
-With files from Wasbir Hussain, The Associated Press