In a statement, Reliance Capital said Kela will move to this role from tomorrow.
"Kela intends to devote a significant portion of his time on spiritual and philanthropic pursuits with the renowned Sadhguru and the Isha Foundation," the company said.
Kela, who has been known as a successful fund manager, is being appointed in a non-executive capacity to the board of directors of Reliance Securities.
The company said he will provide broad guidance on equity markets to its broking and distribution business.
"I have no words to adequately express my gratitude to our chairman Anil D Ambani, who has been my role model for his indomitable willpower, determination and self-discipline, and who has transformed my life, professionally and personally, over the past 15 years to heights that neither my family nor I could have even imagined when I joined the Group," Kela said.