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granthi

n. The person who reads the sacred scripture at a Sikh religious ceremony.

Wikipedia
Granthi

A Granthi (, ) is a person, male or female, of the Sikh religion who is a ceremonial reader of the Sri Guru Granth Sahib, which is the Holy Book in Sikhism, often read to worshipers at Sikh temples called a Gurudwara. The name Granthi comes from the Sanskrit granthika, which means a relater or narrator. Any Sikh individual appointed the title of being a Granthi is considered a principal religious official of Sikhism. Although they are considered religious officials in Sikhism, they are not considered to be the equivalent of a priest, as the belief is that there are no such religious intermediaries.