Aptya is used as an epithet of Trita in Hindu scriptures. Tritaptya is associated mainly with Indra, but also occasionally with the Maruts, Agni and Soma. The epithet aptya is associated with Trita seven times in four hymns of Rig Veda – Rig Veda 1.109; 5.41; 8.47 and 10.8. Trita is mentioned alone as having slayed Vritra, by the power of the Soma drink (Rig Veda 1.187.1). Tritaptya slays Vritra, overthrows Vala and, destroys the three-headed Vishwarupa. There are invocation to the warrior god, pouring of libations and drinking of soma or other intoxicants. In the Vedic tradition warriors identify themselves with Trita (Rig Veda 2.11.19; 5.86.1)
In the Brahmanas, Trita appears as one of the three sons of
Agni, the other two being Ekata and Dvita. According to the tale of the three
brothers, Ekata and Dvita throw Trita in a well (Taittiriya Brahmana
3.2.8.10-11; Satapatha Brahmana 1.2.3.1).
Dvita (Rig Veda 8.47.16; 5.15.2) occurs with Trita and Agni
respectively.
In the epic period, Trita appears only as the name of a
human seer.