Anji (41), who was recruited about a week ago, had gone to place meat inside the enclosure for the animals without noticing that it was open on the other side where the cubs were resting, park sources said.
Though he tried to escape, the cubs of white tigress Sowbhagya, chased and allegedly mauled him to death, they said.
Based on a complaint by the park authorities, police registered a case of unnatural death.
Confirming Anji's death, the executive director of the Bannerghatta Biological Park Santosh Kumar said "Since police investigations are on into the matter, it is not fair on my part to give any reason behind Anji's death."
The park was in the news recently when five royal Bengal tigers attacked and killed a white tiger.
Disclaimer: No Business Standard Journalist was involved in creation of this content