New Delhi, July 17 -- India's space programme has long been associated with landmark achievements-from Chandrayaan-3's successful Moon landing to ambitious plans for human spaceflight. But even as the country's space ambitions continue to expand, the Indian Space Research Organisation (ISRO) is facing a different kind of challenge: holding on to its experienced scientists.

According to a report by NDTV, more than 100 scientists have either resigned or taken voluntary retirement from Isro over the past few months. The development has prompted the Department of Space (DoS) to tighten the rules governing resignations for scientists working on some of India's most important space missions.

The India Today report said the Department of Space...