Russia has offered India its S-350 Vityaz air defence system with full technology transfer, giving the country the ability to produce and maintain parts locally. The system will complement existing S-400 batteries, strengthen India’s multi-layered air defence and protect against modern threats from Pakistan and China. Russia has offered India its S-350 Vityaz air defence system with full technology transfer, giving the country the ability to produce and maintain parts locally. The system will complement existing S-400 batteries, strengthen India’s multi-layered air defence and protect against modern threats from Pakistan and China.