The Khanda is one of the most important symbols of Sikhism

Sikhism

Sikhism is a monotheistic religion founded during the 15th century in the Punjab region, by Guru Nanak Dev and continued to progress with ten successive Sikh Gurus . It is the fifth-largest organized religion in the world and one of the fastest-growing...

 alongside the Ik Onkar. The khanda is like a "coat of arms' for Sikhs. It was introduced by the sixth Guru

Sikh Gurus

The Sikh Gurus established Sikhism from over the centuries beginning in the year 1469. Sikhism was founded by the first guru, Guru Nanak, and subsequently, all in order were referred to as "Nanak", and as "Lights", making their teachings in the holy scriptures, equivalent...

, Guru Hargobind Ji. It is an amalgam

Amalgam

Amalgam may refer to:* Amalgam , mercury alloy* Amalgam , material of "silver" tooth fillings* Amalgam Comics, publisher* Amalgam, Gauteng, South Africa* Amalgam , fictional character in the Marvel Universe...

 of three symbols, represented by three different items. It is commonly found on the Nishan Sahib

Nishan Sahib

The Nishan Sahib is a Sikh holy triangular flag made of cotton or silk cloth, with a tassel at its end. The word, Nishan means symbol, and the flag is hoisted on a tall flagpole, outside most Gurudwaras. The flagpole itself covered with fabric, ends with a two-edged dagger on top...

or flag of the Sikhs, anywhere in a Gurudwara.

The Sikh national Emblem was created by the Shromani Gurdwara Parbandhak Committee (SGPC) after its constitution in the early twentieth century, when it depicted the Sikh doctrine “Deg Teg Fateh” in the form of Emblem (logo).