Mercury continues to rise in Chuadanga, crossing 41 degrees Celsius for the first time this season in early summer
The body of the victim, Asaduzzaman Rony, was recovered around 4pm, said police.
Taltoli police OC Kamalesh Haldar said the 29-year-old had come to the park with his friend's family and cousin.
"Around 1pm, he and his cousin Al-Amin crossed the boundary set for visitors and poked the crocodile with a stick to get a closer look of it."
"The crocodile bit him and dragged him inside water," said the OC.
Rony was a student at a Malaysian university. He came to Bangladesh during vacation.