India and Russia are likely to sign a multi-billion dollar deal for S-400 'Triumf' long-range air defence missile systems tomorrow following talks between Prime Minister Narendra Modi and Russian President Vladmir Putin in Goa. <br/><br/>This was stated by Russian presidential aide Yuri Ushakov in Moscow. He told Russian news agency TASS that India is interested in getting five systems of the most modern air defence system, capable of firing three types of missiles, creating a layered defence, and simultaneously engaging 36 targets. It has the capability to destroy incoming hostile aircraft, missiles and even drones at ranges of up to 400 km. <br/><br/>If India signs the deal, it would be the second customer of the prized missile system after China which had struck a 3 billion US Dollar contract last year.<br/><br/>The S-400, an upgraded version of the S-300, had previously only been available to the Russian defence forces. It is manufactured by Almaz-Antey and has been in service in Russia since 2007.