Apart from the diplomatic warning to India, US federal prosecutors have also filed a sealed indictment against at least one suspect in a New York district court, the FT report said.

Looks like another assassination plot that failed, it also explains why they aren’t sharing too many details if the investigation is ongoing.

I think this is just the US’s way of telling India that we have their scent, and to make sure nothing is left at the end of the trail.

Probably because they want this to full stop.