Amaranthus caudatus or A. cruentus
Botanical name: Amaranthus caudatus
Family: Amaranthaceae
Locaion: Paddar valley J&K
Altitude: 2000-2200 meters asl
Many thanks ... for this upload too.
caudatus and cruentus seem to be getting close for me.
Agree with ... Would like to learn clear differences between A. caudatus and A. cruentus

As per keys in the "Bengal Plants" -
leaves acute or acuminate; bracts recurved, much exceeding the oblong-lanceolate, acuminate sepals ----- A. cruentus L.
leaves obtuse, rarely acute; bracts hardly recurved, not much exceeding the obovate, mucronate sepals ---- A. caudatus L.