MARCOS Commando is a special forces unit of the Indian Navy, officially called the Marine Commando Force (MCF) . The abbreviation MARCOS stands for Marine Commandos. The force was originally named Indian Marine Special Force, which was later changed to Marine Commando Force to impart "an element of individuality" to it, according to the Indian Navy. The MARCOS are capable of undertaking operations in all types of terrain but are specialized in maritime operations. The force has undertaken numerous joint exercises with special forces from around the world. As of 2012, the MARCOS has about 2,000 personnel though the exact number remains classified.

The responsibilities of MARCOS have evolved with time. Some of the duties of MARCOS include:

• Providing support to amphibious operations
• Special surveillance and amphibious reconnaissance operations
• Conducting operations at the strategic and the tactical level

MARCOS Commandos are trained in every kind of weapon and instrument, including knives, crossbows, sniper rifles, handguns, assault rifles, submachine guns, and bare hands. Being divers, they can reach hostile shores swimming underwater.

The selection process of the MARCOS Commando in India has several stages, and the Initial Qualification Training of the Indian Marine Commando comprises various activities. The roles and responsibilities of a commando who joins the SF MARCOS include conducting amphibious assaults, reconnaissance missions, anti-piracy operations, and hostage rescues. The motto of the Special Forces, MARCOS Commando, is "The Few The Fearless". The training period of the candidates willing to join the Special Forces as MARCOS Commando is commenced and conducted by the Indian Navy.