Punjab observes a public holiday on December 27th for Shaheedi Diwas, commemorating the martyrdom of Guru Gobind Singh Ji's four sons and Mata Gujri Ji. All Panjab University affiliated institutions and colleges will be closed. This day remembers their sacrifice, particularly the brutal execution of the young Sahibzadas after refusing to convert to Islam, followed by Mata Gujri Ji's martyrdom.