Hadji is a slur used to describe Indians in a derogatory way. Reference to a youthful East Indian side-kick character named Hadji from the '70s Saturday-morning cartoon, "Johnny Quest"
The word Hadji is a racial slur that has been used historically to degrade and dehumanize indians. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to indians. If you are unsure about whether or not it is appropriate to use the word Hadji, it is best to err on the side of caution and avoid using it in any situation.