Ajodara was one of the warriors who aided Skanda Kārtikeya (Kartikeya) during the battle against Tārakāsura (Tarakasura), in which Tārakāsura was killed.

Mahābhārata (Kinjawadekar)(9.45.60)
Mahābhārata Vols. 1-43 (Siddhāntabāgīśa)(Footnote of 9.42.52. Vol. 29. P. 476)