241225PKD1: Id pls collected from Kendrapada Odisha on December 2025: 4 high res. images.
It may be some Schoenoplectus species of Cyperaceae as per
https://efloraofindia.com/efi/schoenoplectus/
For sure it is not a Carex species, rather a Schoenoplectus or Scirpus s.l., so a species belonging to the family Cyperaceae. That is all I can say about it.