"I don't know why NASA is tracking these levels in India"

Because's it's basically in their job description? https://www.nasa.gov/offices/ogc/about/space_act1.html#POLIC...

"...Objectives of Aeronautical and Space Activities. The aeronautical and space activities of the United States shall be conducted so as to contribute materially to one or more of the following objectives:

1) The expansion of human knowledge of the Earth and of phenomena in the atmosphere and space. ..."