He also congratulated the Defence Research Development Organisation for developing the interceptor missile allowing India to join an elite club of nations possessing such advance technology.
"DRDO must demonstrate the capability to develop missiles of the range of 5000 km at the earliest. This is a challenge for the DRDO and I hope they will successfully meet this challenge at the earliest," he said here.
Antony was addressing a gathering of defence scientists who received the DRDO's annual award for excelling in their respective areas.
"The interceptor missile defence program has taken India into the elite club of nations that possess the capability to demonstrate this technology. DRDO should now concentrate on developing a credible ballistic missile defence for the country," he added.
He also asked DRDO scientists to focus on the development of Mark II version of the Main Battle Tank (MBT) Arjun for the Indian Army and Kaveri Engine.
"The development of MBT Arjun and Kaveri Engine has been hit by delays. Development of MBT Arjun is a major milestone. But Mark II is another area of challenge. That challenge you have to meet," he told the gathering.