Russian S-400 Triumf surface-to-air missile system is seen on the Red Square for the Victory Day parade in Moscow, Russia, May 9, 2019. (PHOTO / XINHUA)

MOSCOW - Delivery of S-400 air defense systems and relevant equipment to India will be conducted as scheduled, Russia's Federal Service for Military-Technical Cooperation chief said on Monday.

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"The production of the S-400 Triumph anti-aircraft missile systems is on schedule. The delivery of the equipment for the S-400 Triumph system is expected to be completed within the agreed time frame," Dmitry Shugaev, chief of the Russian Federal Service for Military-Technical Cooperation, said at the Army-2023 international military-technical forum.

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The seven-day forum opened Monday in the Moscow Region's town of Kubinka.