Doctors said he had no visible symptoms of swine flu.
The Malaysian coach was found with swine flu symptoms at a time when the virus has created a scare in parts of India, claiming eight lives.
Andhra Pradesh has recorded 76 swine flu cases. India's first confirmed swine flu case was detected here May 16.
Some policemen at the venue of the badminton championship were seen wearing masks Monday night.
More than 250 players from 42 countries are competing in the six-day event that began Monday. The championship is the first of the series of world-class sporting events India will host ahead of the 2010 Commonwealth Games in New Delhi.
In view of the increasing number of swine flu cases in the country, the health ministry last week advised that festivals, sports, religious and political events should be discouraged and cancelled if possible.
The suspected swine flu case has come as another setback to the event after England pulled out citing security concerns.