How it was won
The Czech Republic's Lubomir Jancarik won the biggest title of his career in Chennai, and Satsuki Odo won the women's event as top seed without dropping a game in the final.
Jancarik was unseeded and beat the fourth seed, India's Manav Thakkar, in the first round. He beat Sathiyan Gnanasekaran in the quarter-finals and South Korea's Park Ganghyeon 3-2 in the semi-finals, and then France's Thibault Poret 4-2 in the final. Poret had reached the final after a walkover from the top seed, Oh Junsung, and a 3-0 win over his teammate Flavien Coton. Ovtcharov, the second seed, lost to Park in the quarter-finals.
Odo beat Japan's Miu Hirano 4-0 in the final, 11-2, 11-7, 13-11, 11-5. Hirano had knocked out the second seed, Miyu Nagasaki, 3-2 in the last 16.
India's Harmeet Desai and Yashaswini Ghorpade reached the mixed doubles final in front of a home crowd and lost 3-0 to Romania's Eduard Ionescu and Bernadette Szőcs. Coton and Poret won the men's doubles after another walkover from Oh and Lim Jonghoon, and Japan's Sakura Yokoi and Sachi Aoki won the women's doubles.