Probably, you have not judged that the query of the anonymous author is of purely academic nature, as he has sought help (but of what kind) if his manager has sent him a text stating to report to him in two days. Further to it, what help he has expected from the members if his NSR profile is expired. That also indicates about the problem to be of hypothetical nature. In my opinion, he just sought an answer to some of his management school's academic exercise
Anyway, your help in solving his academic query is appreciated. Even if the query represents a real problem, I endorse your views, except with the difference of opinion on your statement, "any communication for not reporting for duty should come from HR Department."
We cannot assume that wherever the term HR appears that necessarily falls within the domain of responsibilities of the HR department only. HR cannot be over burdened with each and every bit of big or small activities of the employees Needless to emphasise, while major HR related functions are the responsibility of the HR department, all managers of individual departments have also to discharge one or the other HR functions with respect to the employees of his own unit. So, subsidiary functions of HR pertaining to the individual units doubtlessly rest with the respective manager of that unit.
Any organisation cannot be supposed to make its managers totally handicapped just to become merely silent spectators of the negative or positive activities of his subordinate employees. A manager is fully responsible for maintaining discipline amongst his subordinates and to initiate action for his irregularity or indiscipline. Except in smaller companies, if a manager is delegated with the powers of disciplinary authority he can well terminate employee working under him on account of his unauthorised absence with a copy of his order duly endorsed to the HR department for further necessary action with respect to maintenance of his service records. Even if he is not delegated with the powers of a disciplinary authority, still he can initiate the process of disciplinary proceedings to be handled and finalised ultimately by some competent authority.
So, I don't see anything wrong, if the manager has sent him a text stating that if he did not report to him in two days, he will report to the nasscom or terminate him.