Indian Railways operates several meter gauge locomotives, each with unique specifications and roles. Notable classes include the F class 0-6-0 tender engines, known for their reliability and versatility, and the O class 4-4-0 outside cylinder tender engines, praised for their passenger service capabilities.
Other classes like the A class 2-4-0 tank locomotives and D class 0-4-0 engines have also played significant roles in freight and mixed traffic services. These locomotives collectively contribute to the efficient operation of meter gauge routes across the country.