The S-400 air defence systems deal, for which deliveries are scheduled to begin by November 2021, was on schedule.
One team of Indian Air Force (IAF) officials has been trained in Russia to operate the system while another team is undergoing training.
What is S-400?
The S-400 is Russia’s most advanced long-range surface-to-air missile defence system.
In 2018, India had signed a $5 billion deal with Russia to buy the S-400 air defence missile systems.
The system is also known as the ‘Triumf’ interceptor-based missile system.
It can simultaneously track numerous incoming objects — all kinds of aircraft, missiles and UAVs — in a radius of 400km and launch appropriate missiles to neutralise them.
The U.S. imposed sanctions on Russia under its stringent Countering America’s Adversaries Through Sanctions Act (CAATSA) for manufacturing S-400.
The law also provides for punitive action against countries purchasing defence hardware from Russia.
