India and Russia on Friday concluded the much expected deal for the S-400 Triumf air defence missile system following the annual bilateral summit between Prime Minister Narendra Modi and Russian President Vladimir Putin.

"The sides welcomed the conclusion of the contract for the supply of the S-400 Long Range Surface to Air Missile System to India," a joint statement issued following the meeting said. It said both sides reaffirmed their commitment to enhance their military technical cooperation, which has a long history of mutual trust and mutual benefit.