In "Temple of Doom," after Indiana Jones, Willie Scott, and Ke Huy Quan's Short Round first arrive at Pankot Palace, they sit down to a large banquet, where Indy questions Roshan Seth's Prime Minister Chattar Lal about the sinister Thuggee cult.

Source: https://www.slashfilm.com/1325513/what-the-monkey-brains-in-indiana-jones-and-the-temple-of-doom-were-made-of/

Veteran character actor Roshan Seth played the Prime Minister of Pankot in Indiana Jones and the Temple of Doom, an obsequious man with the Maharaja's ear who later became a villain.

Source: https://screenrant.com/indiana-jones-movies-villains-ranked/