The Gaj class offshore tugboats are a series of two auxiliary watercraft built by Garden Reach Shipbuilders & Engineers Ltd., Kolkata, for the Indian Navy.

The vessels in the class are Indian Navy's biggest tugboats and can be used for towing aircraft carriers.

[1] Each vessel in the class has a 40-ton bollard pull and are powered by twin Garden Reach G7V diesel engines coupled to two propellers with a total output of 3920 bhp.

The vessels have a speed of 15 knots and are also fitted with diving and salvage equipment.

They carry an RCC (recompression chamber) and can render limited submarine rescue services.