Under the USD 5.43 billion deal signed with India in 2018, Russia will complete deliveries of the S-400 Triumf (Triumph) air defence systems next year, according to a media report on Monday.

"Russia will complete the contract to supply India with five S-400 Triumph air defence systems in 2026. Four of these systems have been delivered to date, and the fifth will be delivered next year," a defence source was quoted as saying by the state-run TASS news agency.