Gaja (गज- a Sanskrit word for elephant) is one of the significant animals finding references in Hindu scriptures and Buddhist and Jain texts. In general, a gaja personifies a number of positive attributes, including abundance, fertility and richness; boldness and strength; and wisdom and royalty. In European Portuguese, it means "physically attractive female"; its origin in the Portuguese language can be related to a personification of fertility, as mentioned.
In the context of the history of Ancient India, the earliest depiction of gaja is found on the seals discovered at sites (like Harappa and Mohenjo Daro) of the Indus Valley Civilization (3000 BC – 1700 BC). Some scholars believe that by that time elephants had been tamed and domesticated, and used for peaceful and possibly for other purposes. In the Vedas, there is no direct reference to elephants. Megasthenes, the Greek ambassador to the court of Chandragupta Maurya reports use of war elephants during warfare.
Over a period of time encompassing several centuries, elephants became an important part of Indian life and society, particularly of religious tradition, the royalty, and the aristocratic segment of the society. Capturing, taming and training of elephants developed into a specialized skill. In Ancient India, a number of treatises were written about caring and management of elephants, which included the following:
The legend states that Airavata, the first elephant, emerged from the churning of the ocean. There is another mythological account, which states that Brahma created elephants.