Arjun Erigaisi, hailing from a Telugu family in Warangal, Telangana, has made significant waves in the chess world with his distinct playing style and commendable achievements. His early exposure to chess was nurtured at the BS Chess Academy in Hanamkonda.

Arjun's chess career is adorned with numerous achievements. He became a grandmaster at just 14, showcasing his early potential. By 2022, he had claimed the Indian National Championship and scored his victories at prestigious events such as the Tata Steel Chess India Blitz and the Abu Dhabi International Chess Festival. His consistent performance has escalated his standing internationally, ranking as the 3rd highest at his peak in October 2024, and being India's top chess player as of September 2024.

The year 2024 has been particularly stellar for Arjun. He displayed formidable form, winning the Menorca Open A and the Stepan Avagyan Memorial with awe-inspiring performances. His pivotal role in the Chess Olympiad in Budapest was instrumental, as he not only secured an individual gold medal on board three but also led the Indian team to their historic first team gold medal. A 2968 performance rating from this event highlighted his elite level of play.