INS Shakti (A57) is a Deepak-class fleet tanker in service with the Indian Navy. She was built by Fincantieri, an Italian shipbuilding company based in Trieste. She is the second and final ship of her class. Shakti, along with her predecessor Deepak, is one of the largest ships of the Indian Navy. The construction of the vessel began in November 2009 and she was launched in October 2010. She was handed over to India by September 2011 and was commissioned on 1 October 2011. From Wikipedia