In the midst of lurking apprehension of US sanctions over the procurement of the S400 missile system, India has gone ahead with a $5 billion deal signed with Russia in October 2018 to augment its anti-ballistic capabilities. The S400 surface-to-air missile system was developed in 1990’s by “Almaz Antey”, a Russian state-owned community in arms industry to detect and combat varied aerial targets such as drones, fighter jets, bombers, and cruise and ballistic missiles up to a range of 600 km.