Religion: Hindu deity
First Appearance: The Doom Patrol (vol. 1) #94 (Mar. 1965): "The Nightmare Fighters"
Number of Appearances: 1
Note: Rama Kara believed in Osra; Radick created Osra illusion
Eastern mystic Rama Kara evangelized about the existence of the "spirit of Osra." He even appeared on the talk show "Open Mind" to try to prove that the spirit of Osra is real. He showed photographs he claimed were of Osra.
Opposing Rama Kara on the TV show was writer and professional skeptic, Dr. John Radick, who maintained that Osra was not real. What nobody yet knew was that Radick himself had been using his father's illusion technology to create illusions of Osra destroying buildings and wreaking havoc in other ways.
The Doom Patrol ultimately exposed Radick and cleared Rama Kara of suspicion of wrongdoing.
No evidence is ever actually shown that Osra is a manifestly "real" Hindu deity (in the way that gods of many real-world pantheons are manifest reality in the DC universe.) Was Rama Kara's belief in Osra based purely on the illusions created by Radick? This seems unlikely. Presumably Radick would have based his illusions on an extant belief already strongly held by believers such as Rama Kara.
As far as we know, "Osra" is not an actual Hindu deity. It isn't even that Rama Kara claimed Osra was a full "god" or deity. He referred to Osra as a "spirit." Given the nature of Hindu polytheism, such distinctions are probably immaterial.
Suggested links for further research about this character and the character's religious affiliation: