ISRO says it has successfully carried out tests of systems for the Gaganyaan crew module. The agency reports that one of the tests focuses on the separation of the “umbilical mechanism,” which links the crew module—where astronauts are based—to the service module that provides propulsion. The separation test is intended to validate that the connection mechanism can be disengaged as required during mission operations. The reports indicate that the test results meet expectations, with ISRO describing the exercise as a successful completion of the crew module systems testing phase. The coverage emphasizes the role of the umbilical mechanism in transferring functional connections between the two modules and the importance of ensuring reliable separation. While details on the full test sequence and specific performance parameters are not provided in the available excerpts, the reporting consistently states that the crew module systems tests include verification of the umbilical separation function.