Indra’s troops (ganas), storm deities, also called Marutagana.
Diti asked Kashyapa for a son who could destroy Indra. Indra went into Diti’s womb, and divided the fetus into 49 parts. The parts screamed, Indra shouted: ‚Ma ruda‘ – don’t scream. When they were born he called them Maruts. In this context Indra is known as Gotrabhit ‚one who kills someone from his lineage (gotra)‘.
See also Rudras.
Read about the Maruts here