The Khanda (Punjabi: ਖੰਡਾ, romanized: khaṇḍā) is the symbol of the Sikhism which attained its current form around the 1930s during the Ghadar Movement.
Traditionally, it was very common to see "Ik Onkar" above the entrance to a Gurdwara, or on the front page of the Guru Granth Sahib.
The cauldron or kettle symbolizes charity and is a reference to the Sikh religious obligation to provide langar, the free distribution of food, to all people, irrespective of an individual's religion, caste or ethnicity.
In recent years, the Khanda has been used to show solidarity within the Sikh community after high-profile shootings in the United States.
'half moon') of the Nihang, which consists of a khanda sword in the middle of a crescent, aligned with points upward.