The history of Bengali begins in Thundera during the great cataclysm. It is one of the three Thunderian compatriots the ThunderCats are unable to save. Pumyra and Lynx-O are the other two.

In a stroke of luck, a Berbil spacecraft appears in time and rescues the trio. However, when the planet explodes, the fuel tank suffers damage. The ship has enough fuel to reach the Third Earth, but not enough to land in a known settlement. Thus, the trio ends up on a desert island where they build a palisade with the two Berbils.

Jaga appears to Lion-O and reveals to him that these other Thunderians exist. Cheetara uses his psychic abilities to verify this, but can not identify its exact location. However, shortly after, Ma-Mutt, the Berserkers and the ThunderCats discover the island.

The forces of evil conspire to capture the trio and hold them hostage in Fire Rock Mountain as bait for the ThunderCats, who manage to rescue their countrymen and take them back to Cats Lair. The decision is made to recruit the Thunderians as ThunderCats honoraria, and each receives a new uniform and badge.

Bengali is stationed in the Omens Tower with the other new ThunderCats and Snarfer to monitor the flying fortress known as Sky Tomb.

He supports the ThunderCats with his blacksmithing ability, especially when using his Hammer of Thundera to reinforce the Sword of Omens after Tug Mug cuts the blade in two