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.

Exercise Malabar is a naval exercise involving the United States, Japan and India as permanent partners. Australia rejoined the exercise in 2020. The annual Malabar exercises includes diverse activities, ranging from fighter combat operations from aircraft carriers through maritime interdiction operations, anti-submarine warfare, diving salvage operations, amphibious operations, counter-piracy operations, cross–deck helicopter landings and anti–air warfare operations. Over the years, the exercise has been conducted in the Philippine Sea, off the coast of Japan, the Persian Gulf, in the Bay of Bengal and the Arabian Sea. It is taken care by the Asian and the North American Commands.