Sridhar Vembu explains the tech behind Zoho’s Arattai, a Swadeshi messaging app: ‘Built on deep engineering’

Zoho co-founder and Chief Scientist Sridhar Vembu has shed light on the technological depth powering Arattai, the company’s homegrown messaging and calling app, emphasising the years of R&D and engineering frameworks that form its foundation.

Arattai, a simple product built on deep engineering

In a post on X on 5 October 2025, Vembu described Arattai as a product that appears simple on the surface but is “built on a vast amount of deep engineering.” He outlined several proprietary frameworks developed in-house by Zoho that underpin the app’s…