Before you see a gurdwara, you see its flag. The Nishan Sahib, the triangular banner of the Sikhs, flies from a pole that typically rises well above the building it belongs to, and Sikh practice treats this as the point: the flag announces from a distance that below it there is a congregation, a kitchen that feeds anyone who comes, and sanctuary. The name translates roughly as "respected mark" or "exalted ensign." It is one of the few religious flags in the world whose display is mandatory, and one of even fewer to have had its color changed by religious decree within the last few years.
A flag raised as an act of defiance
The tradition begins with an execution. In 1606 the fifth Guru, Arjan, was tortured and killed on the orders of the Mughal emperor Jahangir. His son and successor, Guru Hargobind, responded by arming the community. He wore two swords, one for miri (temporal authority) and one for piri (spiritual authority), built the Akal Takht, the "throne of the timeless one," facing the Harmandir Sahib in Amritsar, and raised a flag over it. That banner, then called the Jhanda Sahib, was a statement that the Sikhs were a sovereign community, not merely a congregation.
The flag's look shifted over the centuries. Earlier traditions describe banners from the time of Guru Amar Das, and the color and emblem varied through the era of the Sikh misls and Maharaja Ranjit Singh's empire. The khanda emblem now universal on the flag settled into its familiar form in the early twentieth century. What did not change was the pairing of the flag with the Akal Takht: two Nishan Sahibs stand before it today, one slightly taller than the other, for miri and piri.
The khanda, read piece by piece
The emblem takes its name from the khanda proper, the double-edged sword at the center. One edge is often read as divine justice, the other as freedom; the blade as a whole is the creative power of God that cuts through falsehood. Around it sits the chakkar, a circle with no beginning or end, the oneness and eternity of God. It is also a literal weapon: Sikh warriors, especially Nihangs, wore steel quoits of exactly this shape. Flanking the chakkar are two single-edged kirpans, again miri and piri, the same doctrine Guru Hargobind wore on his body made into geometry.
The flag itself is a tapering triangle, usually finished with a tassel at the point. A steel khanda tops the pole. There is no standard size; gurdwaras fly whatever their pole can carry, and the poles can be enormous. The twin Nishan Sahibs at the Akal Takht stand around 105 feet tall.
The pole wears clothes
A Nishan Sahib installation is not a bare flagpole. The entire pole is wrapped, base to finial, in cloth matching the flag, called a chola, the same word used for a robe. The dressing of the pole makes the whole structure sacred rather than just the banner at its top, and it turns maintenance into ritual.
That ritual has a fixed date. Each year at Vaisakhi, the April festival that commemorates the founding of the Khalsa in 1699, the pole is lowered, stripped, and washed by the congregation, traditionally with milk and water, sometimes with yogurt, then dressed in a fresh chola and hoisted with prayers and kirtan. Handling the pole is prized seva, voluntary service, and the event routinely draws the whole sangat. Between Vaisakhis, a torn or faded flag is replaced as needed; a shabby Nishan Sahib is considered a failure of care.
The color question
Ask most people the color of the Sikh flag and they will say saffron. For most of living memory they would have been right in practice, and wrong on paper. The Sikh Rehat Maryada, the code of conduct finalized in 1945 by the Shiromani Gurdwara Parbandhak Committee (SGPC), prescribes two colors for the Nishan Sahib: basanti, a xanthic yellow, or surmai, navy blue. Navy blue remains the color of the Nihang warrior orders, whose flags also carry distinct older emblems. But over the twentieth century, kesri saffron quietly displaced basanti at most gurdwaras, including the most important ones.
That drift became a controversy. Sikh organizations complained that kesri is the color of Hindu religious symbolism, and that its spread over gurdwaras amounted to a slow saffronization of a distinct faith. On 15 July 2024 the Akal Takht, the highest temporal authority in Sikhism, ruled that only basanti or surmai are acceptable: a basanti flag with surmai khanda and tassel, or the reverse. The SGPC moved quickly. In August 2024 it replaced the saffron cloth on all thirteen Nishan Sahibs at the Golden Temple complex in Amritsar, including the twin miri-piri poles before the Akal Takht itself. Gurdwaras worldwide were directed to follow as their flags came due for replacement, so the change is still propagating, one Vaisakhi at a time.
A flag that travels
Wherever Sikhs have settled, the Nishan Sahib has gone up: over gurdwaras in Southall and Surrey, Yuba City and Nairobi. It flies from the floats of Nagar Kirtan processions at Vaisakhi, and small versions fly from trucks and tractors across Punjab. Because the flag marks presence and sanctuary rather than a state, it has largely avoided the fate of becoming a national symbol, though it carries political charge in debates over Sikh identity and autonomy. Its daily work is more modest and has not changed in four centuries: to tell anyone within sight of the pole that they can come in, and that they will be fed.
References
[1] "Nishan Sahib," Wikipedia. https://en.wikipedia.org/wiki/Nishan_Sahib
[2] "The Nishan Sahib: A symbol of Sikh Sovereignty and Identity," SikhNet. https://www.sikhnet.com/news/nishan-sahib-symbol-sikh-sovereignty-and-identity
[3] "How the Nishan Sahib is Maintained and Respected," SikhNet. https://sikhnet.com/news/how-nishan-sahib-maintained-and-respected
[4] "Saffron to basanti: Nishan Sahib dons new colour," The Tribune (India), August 2024. https://www.tribuneindia.com/news/amritsar/saffron-to-basanti-nishan-sahib-dons-new-colour/
[5] "Nishan Sahib," SikhiWiki. https://www.sikhiwiki.org/index.php/Nishan_Sahib
[6] Sikh Rehat Maryada, Shiromani Gurdwara Parbandhak Committee (1945), section on gurdwaras. https://sgpc.net/sikh-rehat-maryada-in-english/