Lakshya Sen suffered a shock second-round defeat to USA's Garret Tan to make an early exit but two-time Olympic medallist PV Sindhu and fast-rising Ayush Shetty progressed to the pre-quarterfinals at the BWF World Championships.

Indian men's doubles pair Satwiksairaj Rankireddy and Chirag Shetty advanced to the pre-quarterfinals of the BWF World Championships here on Wednesday after receiving a walkover in their opening match.

Indian badminton doubles star Chirag Shetty praised the extensive preparations for the BWF World Championships in New Delhi, saying the improved facilities and conditions are clearly visible.

A recurring shoulder injury has been "frustrating" for Satwiksairaj Rankireddy and at times "irritating" for partner Chirag Shetty, but the Indian pair will stick to their "aggressive and explosive" brand of badminton as they target a better medal at their first World Championships on home soil.

India's badminton doubles coach Tan Kim Her confirmed that the star doubles player Satwiksairaj Rankireddy is completely fit from his injury and the message to him and his doubles partner Chirag Shetty is to take it "one match a time" during the BWF World Championships.

India's men's doubles coach Tan Kim Her on Tuesday said Satwiksairaj Rankireddy's recurring shoulder injury remains the biggest concern ahead of the BWF World Championships.

Two-time Olympic medallist Indian shuttler PV Sindhu was on Tuesday seeded ninth in women's singles, while the star men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty has been handed the fifth seeding for the upcoming BWF World Championships

Bolstered by her Japan Open triumph, India's PV Sindhu will spearhead the country's challenge at the China Open Super 1000 tournament starting on Tuesday.

The third-seeded duo, who pulled out of the Indonesia Open last month after Satwik aggravated a recurring shoulder injury, will be eager to resume from where they left off after ending a two-year title drought with the Singapore Open crown.

The Asian Games will be held from September 19 to October 4, and India will be hoping to replicate or even surpass their splendid show of 2023 edition.