Lord Of Light by Robert Zelazny
Details
On a colony of Earth, a band of men has gained control of technology, made themselves immortal, and now rule their world as the gods of the Hindu pantheon.
Lord of Light was published in 1967 by Roger Zelazny, awarded the 1968 Hugo Award for Best Novel, and nominated for a Nebula Award. Zelazny himself said that it was written so that it could be taken as a science fiction or a fantasy novel, so lets see which way we lean. 257 pages.