Gitanjali Rao conceives the idea for Tethys, a device designed to detect lead contamination in water quickly and affordably. The Flint water crisis serves as the primary motivation.

Rao spends considerable time researching, experimenting, and refining Tethys. This period involves trial and error, seeking mentorship, and exploring different technologies to achieve the desired outcome. She utilizes carbon nanotubes in her invention.

Gitanjali Rao wins the Discovery Education 3M Young Scientist Challenge for Tethys. This recognition provides her with significant visibility, funding, and mentorship to further develop her invention.

Tethys receives further acclaim and attention, solidifying Gitanjali Rao's reputation as a young innovator. It also gains broader visibility as a possible way to solve the water crisis and prevent lead poisoning.

Inspired by the rise in cyberbullying and the negative effects of social media on mental health, Rao develops Kindly, an app that uses AI to detect and prevent cyberbullying before harmful messages are sent. The app's core function involves identifying potentially offensive language and prompting users to reconsider their words.

Kindly garners significant attention for its innovative approach to combating cyberbullying. The app's use of AI to promote kindness and empathy online resonates with audiences concerned about the impact of social media on young people.

Rao focuses on further innovations, speaking engagements, and advocating for STEM education. She is known to also focus on bioengineering and genetic engineering innovation projects.