Re: pagal khana
shifa khana is the term doctors have always used in Pakistan. Pagal khana is term made popular by our over dramatic dramas and desi movies in general.
Urdu has descriptions for many things but it isn't used properly.
Another example of a bad use of the language is the word for federal employees. You ask someone who works for the federal government in urdu and they will say I WORK FOR THE SARKAR. There is no other way to say it. Usually people get around it by saying FEDERAL GOVERNMENT in english