India is observing its 29th National Technology Day today. The day, which was first observed on May 11, 1999, aims to commemorate the scientific and technological achievements of Indian scientists and engineers.

To mark the occasion, Prime Minister Narendra Modi took to Twitter to salute all the scientists for their achievements. “On National Technology Day, our nation salutes all those who are leveraging technology to bring a positive difference in the lives of others. We remember the exceptional achievement of our scientists on this day in 1998. It was a landmark moment in India’s history,” he wrote in a tweet.