Hospital stocks Max Healthcare, Apollo Hospitals, Fortis plunge up to 7% - What is driving the stocks down?

Stocks, such as Max Healthcare Institute (down 7%), Apollo Hospitals Enterprise (down 6%), Yatharth Hospital (down 5%), Fortis Healthcare (down 6%), Artemis Medicare Services (down 5%), and Aster DM Quality Care (down 5%), crashed 5-7%.