Russia’s star-wars weapon can hunt anything that flies | S-550 for India?

Russia has been secretly developing this star-wars weapon capable of destroying anything that flies, even in space. On President Vladimir Putin’s orders, Russia has developed and successfully tested the S-550 strategic missile defence system. It's one of the most covert weapons development programme ever conducted by Moscow. What are the capabilities of the S-550? What is Russia preparing for? And Should India buy the S-550 system?