As per efi thread :
A weed (Carpesium abrotanoides) quite distict from C. cernuum in its smaller axillary flower heads and narrower leaves
Carpesium (Asteraceae (Compositae)) page with images of species in efloraofindia : 3 posts by 2 authors.
If you find any mis-identification, pl. let us know. If anybody can send images of other species of this genera (for incorporation in the website), if any, it will be really nice.