India is evaluating the advanced Patriot ground-based air defence system for its ballistic missile shield and the US has provided "classified" material to it on the weapon unit, which was successfully used during both Desert Storm and Operation Iraqi Freedom, Patriot's manufacturer Raytheon said on Tuesday.
"A number of exchanges have taken place between the government of India and the US and information has been given to India at the classified level," Joseph Garret, Vice President of the company's Patriot Programmes told PTI.
Replying to questions, he said tests of the Patriot system, which has been procured by 12 countries, by India's Defence Research and Development Organisation and other agencies had been "highly successful".
On India developing its own missile defence shield, Garret said, "Patriot system gives a major boost to any country's defence capability. India may be developing its own system, but Patriot is a combat-proven weapon system."