India, July 17 -- Amid reports that more than 100 scientists have submitted their papers in recent months, the Department of Space has reportedly issued a memorandum to major Indian Space Research Organisation (ISRO) centres, directing them not to accept resignation or voluntary retirement requests from scientists and engineers working on key missions such as Gaganyaan.

The memorandum, issued on Tuesday, is primarily meant for Group 'A' scientific and technical personnel. The department has directed ISRO centres not to routinely accept resignation or voluntary retirement requests from these employees, news agency PTI reported.

"Of late, it is noticed that there has been a spate of requests for voluntary retirement and resignation from G...