This will be the Spaniard's first visit to the USD 450,000 tournament, India and South Asia's only ATP World Tour tennis event and draws many of the world's leading tennis stars.
Lopez will begin his 2015 season here after playing an impressive year of tennis when he successfully defended his AEGON International title and became the first player to reach consecutive grass-court finals prior to Wimbledon 2001.
He left a strong impression by reaching the fourth round of Wimbledon but went down to Stan Wawrinka. The Madrid native also reached the third round of the US Open for the fifth straight year, apart from defeating World No.2 Rafael Nadal at the Shanghai Rolex Masters.
He repeated the feat in 2008 and 2011. Lopez is known as a strong grass court player, with three quarterfinal runs at Wimbledon.
Speaking about his confirmation, Lopez said, "As South Asia's only ATP World Tour tennis event, the Aircel Chennai Open presents a great platform to kick start the new season. I am glad to confirm my presence, look forward to playing in the city of Chennai, and begin the year on a positive note.