Indonesia Masters: PV Sindhu and Lakshya Sen win first rounds of the tournament

Two-time Olympic medallist P V Sindhu and in-form shuttler Lakshya Sen made impressive starts at the Indonesia Masters Super 750 badminton tournament, reaching the second round with contrasting wins here.

Reigning world champion Sindhu seeded third, record a 21-15 21-19 win over Thailand's Supanida Katethong in a 43-minute women's singles match to set up a second-round clash with Spain's Clara Azurmendi.

However, the highlight of the day was Lakshya's stunning win over world no 10 Japan's Kanta Tsuneyama in the men's singles. The 20-year-old from Almora, who had reached the semifinals at Hylo Open Super 500 and final of Dutch Open, displayed tremendous grit on way to a shocking 21-17 18-21 21-17 win over Kanta in an hour and 8 minutes. Lakshya will now face top seed and two-time world champion Kento Momota of Japan in the next round.

Sindhu didn't have much trouble in outwitting Supanida in the opening game as she ran up a lead of 11-5 and kept her opponent at a distance even after the break. Supanida was more competitive in the second game as she kept snapping at Sindhu's heels. The Indian opened up an 11-8 lead at the break but the Thai player kept lurking around. At 19-18, Sindhu grabbed two match points. Supanida saved one before Sindhu sealed the affair.

In men's singles, Lakshya, ranked 19th, continued his rich vein of form to shock his higher-ranked opponent. Lakshya rallied his way from 6-9 down in the opening game to first grab a 13-11 lead and then reeled off four straight points from 14-13 to leave Kanta behind and gain an upper hand.

In the second game, Lakshya was up 4-0 but Kanta clawed his way back at 10-8. The Indian ensured that he had his nose ahead at the interval but his one-point advantage was blown away by the Japanese, who broke off from 14-14 to roar back into the contest.

In the decider, Lakshya showed great mental fortitude as he fought back from 3-6 to jump to 13-8 with a six-point burst. Kanta made it 16-16 but Lakshya ensured he had the last laugh as he won five of the next six points to enter the second round.

Among others, the sixth-seeded Indian men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty will be up against Malaysia's Ong Yew Sin and Teo Ee Yi later in the day.

Ashwini Ponnappa and N Sikki Reddy will also be in action against Denmark's Alexandra Boje and Mette Poulsen.