Name: Swami River
First Appearance: Amazing Adult Fantasy #9 (Feb. 1962): "The Spirit of Swami River"
Number of Appearances: 1
Note: fake swami turned into ghost by real spirit
The story titled "The Spirit of Swami River" features a fake swami (a "turban-wearing mystic") who is transformed into an actual ghost by an actual spirit.
Suggested links for further research about this character and the character's religious affiliation: