Global Hunger Index: Writing on the wall, or "misleading measurements"?

The Indian government has maintained the stance that the Global Hunger Index is an "erroneous measurement of hunger" and part of a "consistent effort" to "taint India's image"

India has slipped to rank 107 among 121 countries in the latest edition of the Global Hunger Index. The country was ranked 101 out of 116 countries in the 2021 index. With a GHI score of 29.1, the report placed India's hunger levels under the "serious" category. While this shows an improvement in the "alarming" numbers of 38.8 points in 2000, the report says that India's child nutrition performance was quite concerning.

The Indian government has maintained its stance that the GHI is an "erroneous measurement of hunger" and part of a "consistent effort" to "taint India's image." 

What exactly