Valmiki Ramayana Bala Kanda Sarga 37 Shloka 30

तत: then, अग्निपुरोगमा: with firegod in the forefront, सुरगणा: devatas, समेत्य having assembled, अतुलद्युतिम् a hero of unsurpassed effulgence, तम् him, सुरसेनागणपतिम् commander of devata forces, अभ्यषिञ्चन् installed.

With the Firegod in the forefront, all the gods assembled and installed Karttikeya, shining on unsurpassed brilliant, as commander of the gods forces.