1. "E-sar" (with a short "e" sound, like in "bed") - This is the most common pronunciation, particularly in the context of the Indian multinational conglomerate, Essar Group.
2. "Es-sar" (with a long "e" sound, like in "see") - This pronunciation is less common but can be used in some contexts, particularly when emphasizing the "s" sounds.
Ultimately, the best way to determine the correct pronunciation is to check the context in which the word is being used. If you are unsure, it's always best to ask for clarification.