Nishan Sahib-Miri Piri

This is in Amritsar as well. Nishan Sahib symbolizes sovereignty.The Nishan Sahib is supported by a pole of metal having Khanda - a double-edged sword fixed at its top.

The Two swords, symbolizes temporal(Miri) and spiritual powers (Piri).
Khanda or disintegrator - a double-edged sword representing uprooting of an illusion and ignorance.
A circular ring symbolizing cyclic order of the universe.

This Nishan Sahibis is at all the Gurudwara's. It is this Nishan Sahib that is referred to in the daily prayer of the Sikhs asking for its immortality