A collection of ancient Indian texts that form the philosophical basis of Hinduism.

A philosophical discussion or teaching based on the principles found in the Upanishads.

उपनिषदों पर आधारित दार्शनिक चर्चा

English Usage: He wrote a commentary on the Upanishads that explained their teachings.

Hindi Usage: उसने उपनिषदों पर एक टिप्पणी लिखी जो उनके सिद्धांतों की व्याख्या करती है।