While the results of the studies are true in that study (that those fake patients were misdiagnosed), the assessment that why they were misdiagnosed is (may be?) not directly related to their competency.

As a Indian (who comes from relatively simple background), I don't need a study to tell me that general/govt. hospitals that provide PHC are overcrowded, lack necessary support staff, lack necessary equipment.

What the bloomberg article is talking about is, another class of hospitals and medical staff. Narayan Hridayala, Fortis etc employ pretty good doctors.

I doubt that, any general statement can be made about - "doctors trained in India are less qualified than US", because it depends on lot of factors.

EDIT: Added "may be?"