India, March 30 -- An Indian Air Force team has arrived in Russia to inspect a fourth S-400 system for India, which will likely arrive by April-end and be deployed in the Western sector, people aware of the matter said on Monday.

The fifth S-400 system is set to be deployed by November this year, they said, days after the Defence Acquisition Council (DAC) approved five additional Russian-origin S-400 Triumf air defence systems. The fourth unit of the air defence system is likely to be deployed in Rajasthan.

The additional air defence systems will bring the number of S-400 units in India to 10. The country ordered five units from Russia in 2018 under a government-to-government deal. After the DAC nod, all steps leading to a government-to...