Sri Guru Nanak dev introduced “Langar” to Sikhs, which is rendering service through serving in community kitchens. This is a type of seva or physical service just like prayer for the welfare of humanity is a mental service, and providing food or medicine to the needy is material service. Like sikhs, let’s pledge in honour of Sri Guru Nanakji today that we will engage relentlessly in any type of service – taan (physical), Maan (mental) or Dhan (material) – to the disadvantaged groups. Happy Guruparab.