Another word is failed and DRDO babus closed it says successful. NAGAN is earlier attempt from 90s.CAG flags DRDO declaring 20 mission mode projects ‘successful’ despite not achieving objectives
Between January 2010 and December 2019, the DRDO had closed 103 mission mode (MM) projects, undertaken on proven and readily accessible technologies, after incurring an expenditure of ₹2,505.23 crore, says CAGwww.google.com
So, the ALTAS and NAGAN program are not completely successful. I don't think we even ordered any system.
Imagine being unsuccessful twice in 30 years.
The report is from last December.