Thank @david for your reply. but there is no settings like 'Minimum number of tags required in a topic".
for your info:
- we are able to create a topic in other categories but error occurs on one specific category only named “CFO-Members”. we are able to create same topic in other categories.
- Admin can create topic in that category (CFO-Members).
it would be greate for us if can you suggest any work around for the same.