Scorpene-class submarine INS Karanj was commissioned into the Indian Navy on Wednesday. The ceremony took place at Naval Dockyard, Mumbai, in the presence of Naval Staff Admiral Karambir Singh and Admiral (Retired) VS Shekhawat. INS Karanj has the best sonar and does not makes noise at all which makes it the best in the world. INS Karanj is smaller than a nuclear submarine. This makes it the deadliest and the quickest submarine till date. How INS Karanj looks from the inside, watch this video to know.