Arattai, a messaging app by Zoho Corporation, has experienced a significant surge in popularity in India, with daily sign-ups skyrocketing from 3,000 to 350,000. The app's focus on privacy, local infrastructure, and compatibility with low-end devices has propelled it to the top of app store rankings, overtaking WhatsApp and Telegram in the social networking category. The app's rise is fueled by political endorsements and a strong 'Made in India' narrative. Despite this success, Arattai faces challenges in converting downloads into daily active users and expanding its ecosystem to compete with WhatsApp and Telegram, which have 535 million and 104 million installs in India, respectively.