We have nothing to do with all these Puranmashi/Masaya/Sangrand. All these events are based on Pandits Jantri when the Sun will be entering a particular phase. Guru Nanak Sahib had clearly denouced all such observations.
But from where this problem starts.......our own centre of Sikhism " Harmandir Sahib". Every such event is clearly advertised there (near Hukamnama) in the parkirma well before so that people are bound to observe. Shame on the management of our scarced place. Similliar is the case of Akhand