case and that no hard and fast rules can enunciated in that behalf. The only ground suggested in the above questions as constitution a valid ground for staying the disciplinary proceedings is that the defence of the employee in the criminal case may not be prejudiced. This ground has, however, been hedged in by providing further that this may be done in cases of grave nature involving questions of fact and law. In our respectful opinion, it means that not only the charges must be grave but that the case must involve complicated questions of law and fact. Moreover, 'advisability', 'desirability' or 'propriety', as the case may be, has to be determined in each case taking into consideration all the facts and circumstances of the case. While it is not possible to enumerate the various factors, for and against the stay of disciplinary proceedings, we found it necessary to emphasize some of the important considerations in view of the fact that very often the disciplinary proceedings are being stayed for long periods pending criminal proceedings. Stay of disciplinary proceedings cannot be, and should not be, a matter of course. All the relevant factors, for and against, should be weighed and a decision taken keeping in view the various principles laid down in the decisions referred to above. … Indeed, in such cases, it is all the more in the interest of the charged officer that the proceedings are expeditiously concluded. Delay in such cases really works against him.” (emphasis supplied)