India's space programme is facing a growing talent crunch as more than 100 scientists have either resigned or opted for voluntary retirement from the Indian Space Research Organisation (Isro) in recent months.
In response, the Department of Space (DoS) has issued a directive restricting the resignation or voluntary retirement of scientists involved in key missions such as Gaganyaan. While the move highlights the strategic importance of retaining experienced personnel, it also raises questions about why scientists are leaving at a time when India's space ambitions are expanding rapidly.
WHY SCIENTISTS ARE LEAVING ISRO
Experts and former officials attribute the exodus to several factors, led by the rapid growth of India's private space industry.
Since the sector was opened to private players in 2020, companies such as Skyroot Aerospace, Agnikul Cosmos, Pixxel, Bellatrix Aerospace, Dhruva Space and Digantara have created attractive career opportunities with higher salaries, stock options, faster career growth and greater flexibility.
Many former Isro officials have also joined or founded private space startups, further strengthening an ecosystem that is drawing talent away from the national space agency.
DELAYS AND STRUCTURAL CHALLENGES
The departures come as Isro faces delays in several major missions, including Gaganyaan, SSLV-L1, GSLV-F17 and PSLV-N1. Recent PSLV setbacks have further slowed launch activities.
Some current and former officials have also expressed concerns over increasingly centralised decision-making, saying that major technical and administrative approvals are concentrated within the Chairman's Office, affecting operational efficiency.
CALLS FOR A NEW EMPLOYMENT MODEL
Senior officials believe Isro should adopt a more flexible employment model similar to agencies like NASA, combining permanent staff with project-based hiring and contractors.
They argue that such a system would allow Isro to focus on advanced research, human spaceflight and deep-space exploration, while the private sector takes on a larger role in routine space activities.
GOVERNMENT STEPS IN
To prevent further loss of expertise, the Department of Space has made it mandatory for all resignations from scientists working on flagship missions to receive its approval.
Although the number of departures represents only a small portion of Isro's workforce of over 14,600 employees, many of those leaving possess specialised expertise gained through missions such as Chandrayaan-3, SpaDeX and Gaganyaan—skills that cannot be replaced quickly.
The trend reflects the changing landscape of India's space sector, where Isro is no longer the only destination for aerospace talent. As private companies continue to expand, retaining experienced scientists has become one of the organisation's biggest challenges.
