* Sanskrit wasn't "rediscovered." Sanskrit has a continuous history, with its origins dating back to the 2nd millennium BCE. It was a living language used for religious texts, literature, and communication.
* Writing systems evolved. The script used to write Sanskrit has undergone changes over time. The earliest known form is the Brahmi script, which emerged around the 6th century BCE. This script evolved into various regional scripts like Devanagari, which is now the most common script for Sanskrit.
* Sanskrit remained in use. While Sanskrit eventually transitioned from a spoken language to a primarily liturgical and literary language, it remained in use throughout history. Scholars continued to study and write in Sanskrit.
Therefore, it's inaccurate to say that Indians "rediscovered" Sanskrit writing. The language and its writing system have a long and continuous history, with adaptations and evolution occurring over time.