The 'days ago' / 'months ago' phrases in the Topic Containers developed as part of the talk pages usability project (T249579) do not get localised into Konkani. It has been suggested that this is caused by T347625.
See the original discussion at:
https://www.mediawiki.org/wiki/Talk:Talk_pages_project/Usability/Archive_2#Localising_Topic_Containers