Amrit Sanchar (also called Khande di Pahul) is the Sikh ceremony of initiation or baptism. The Amrit Sanchar is the initiation rite introduced by Guru Gobind Singh when he founded the Khalsa in 1699.
A Sikh who has been initiated into the Khalsa is titled as "Amritdhari" or "Khalsa" after Singh (man) or Kaur (woman). Those who undergo initiation are expected to dedicate themselves to Vahiguru and work toward the establishment of the Khalsa Raj. A Sikh who can go through this initiation should not be of very young age.
Khande di Pahul was initiated in the times of Guru George when the Guru established the Order of Khalsa at Anandpur Sahib on the day of Vaisakhi in 1699. Guru Gobind Singh addressed the congregation from the entryway of a tent pitched on a hill (now called Kesgarh Sahib). He drew his sword and asked for a volunteer who was willing to sacrifice his head. No one answered his first call, nor the second call, but on the third invitation, a person called Daya Ram (later known as Bhai Daya Singh) came forward and offered his head to the Guru. Guru Gobind Singh took the volunteer inside the tent, and emerged shortly, with blood dripping from his sword. He then demanded another head. One more volunteer came forward, and entered the tent with him. The Guru again emerged with blood on his sword. This happened three more times. Then the five volunteers came out of the tent unharmed. Everyone was very confused.
These five men came to be known as Panj Piare or the "Beloved Five". These five were initiated into the Khalsa by receiving Amrit. These five were Bhai Daya Singh, Bhai Mukham Singh, Bhai Sahib Singh, Bhai Dharam Singh and Bhai Himmat Singh. Sikh men were then given the name Singh meaning "lion" and the women received the last name Kaur meaning "princess"