On concerns raised by the USA space agency, National Aeronautics and Space Administration (NASA), Mr. Saran said, "NASA is continuing its cooperation with India, including in the manned mission to space".
The DRDO chief said that a low orbit - below 300 km - was deliberately chosen to minimize debris.
Criticising India for the tests, NASA had described it as a "terrible, terrible" thing that had endangered the International Space Station (ISS). The NASA on Tuesday termed as a frightful thing India's shooting down of one of its satellites which have created about 400 pieces of orbital scraps, endangering ISS.
On Tuesday, the National Aeronautics and Space Administration (NASA) had termed a "terrible thing" India's shooting down of its satellite, saying the hit-to-kill mission created about 400 pieces of orbital debris.
India in late March joined the ranks of U.S., Russian Federation and China by successfully targeting live satellite on a low-earth orbit.
India developed a ballistic missile interceptor under the name of "Mission Shakti" and destroyed one of its own satellites at a height of 300 km (186 miles). Moreover, the International Space Station was not directly above the collision spot but in an orbit above the North Atlantic Ocean, over French Guyana, when India's ASAT test took place over the Bay of Bengal, Reddy said.
Another big task in front of the DRDO was to keep this ambitious human spaceflight mission a secret as there were several spy machineries working to track it.
"Space has gained importance in the military domain".
With 830 satellites, United States leads the world in the number of satellites, followed by China with 280 satellites.
Prime Minister Narendra Modi, announced the successful completion of the test which had been dubbed "Mission Shakti" or "Strength".
These includes about 10,000 pieces of space debris, of which almost 3,000 were created by a Chinese anti-satellite test.
"We don't need any more tests in this (lower earth) orbit now", said Reddy. About 2,000 components were sourced from 50 private industries.
India has hailed the test as a sign that it is a space power.
"That is a bad, awful thing to create an event that sends debris at an apogee that goes above the International Space Station [ISS]".