The treatment given to the nurse is similar to the procedures in government offices. A government "servant" can be punished for much less, like writing a letter to a newspaper or even to an "higher authority" without routing it "through proper channel". The "conduct rules" and other administrative rules make it an offence for him or her to make any sort of complaint against the immediate boss. Was the hospital in which Archana was employed under the government? If it was a private hospital, it is doubly unfortunate that she has been sacked for reasons that are of no concern to her employers.
