This is a classic misrepresentation of the facts that is typical of Dana. While the number may be right, the representation of it as being "large" is designed to leave the reader with an impression that is actually wrong.

Homeopathy in India is a fringe therapy.

India has a huge population. You take any tiny fringe group and you can come up with a very large sounding number. Right up until you look at that number as a percentage.

For context: NSSO - Key Indicators of Social Consumption in India Health

Here, the National Sample Survey Office (NSSO), Ministry of Statistics and Programme Implementation reports on medical modality choices. The "other" category makes up about 5-7% usage. In "Other" we have AYUSH. So that's only part of that 5-7%. The "H" in AYUSH is Homeopathy so that makes up a part of a part of the 5-7%.

Looking at it from this angle you get a much more realistic representation of Homeopathy usage in India. An fraction of a fraction of 5-7% of 1.5 billion people still sounds like a lot if you look at it as a stand alone figure.