In 2007 he won the Asian under-16 championship in
Tashkent. Adhiban played on the first board for the gold medal-winning Indian team at the Under-16 Chess Olympiad of 2007 and 2008. In 2011, he won the Cultural Village tournament in
Wijk aan Zee which qualified him for the 2012
Tata Steel C tournament. In this latter event, he tied for 3rd–4th with
Daan Brandenburg with a score of 8.5/13. In the
Chess World Cup 2013, Adhiban caused an upset in the first two rounds, beating 2710-rated Russian GM
Evgeny Alekseev in the first round, and
Alexandr Fier in the second one. Adhiban won the 2013 Sants Open in
Barcelona with a score of 8.5 points out of 10. This event included 23 GMs and 28
international masters (IMs). In July 2014, he won the Masters open tournament of the
Biel Chess Festival. In the following month, he contributed to India's bronze medal at the
41st Chess Olympiad in
Tromsø scoring 7/11 on board four. He was also a member of the winning team of the Spanish League 2015, Solvay, along with teammates
Pentala Harikrishna,
Surya Shekhar Ganguly,
Aleksander Delchev,
Sergio Cacho Reigadas,
Jesus Maria De La Villa Garcia, and
Elizbar Ubilava. Adhiban competed in the
Chess World Cup 2015, where he was knocked out by
Vladimir Fedoseev in the first round after the
rapid tiebreaks. In January 2016, Adhiban won the 2016 Tata Steel Challengers Tournament in a 3-way tie. The co-leaders were GM
Alexei Dreev and GM
Eltaj Safarli, all of whom earned 9 points out of 13 (+6-1=6). Because Adhiban defeated them both, he had the better tiebreaks and was therefore awarded the spot in the next Tata Steel Masters tournament. Despite being the lowest rated player at the 2017
Tata Steel Masters Tournament, he managed to finish third with a score of 7.5 points out of 13 (+4-2=7). He defeated
Sergey Karjakin,
Dmitry Andreikin,
Richárd Rapport, and
Radosław Wojtaszek. Adhiban won the 2018
Reykjavik Open, scoring 7½/9 (+6–0=3). He recorded victories over
Alejandro Ramírez,
Maxime Lagarde, and Richárd Rapport. Adhiban also won the 2018 edition of the
Tournament of Peace held in
Zagreb,
Croatia, which was renewed after a 33 year hiatus. He was also a part of bronze winning Indian team in 2022
Chess Olympiad held in
Chennai,
India. ==References==