The Karmapa?jik_ is a manual for the domestic rituals of the Paippal_da tradition. Claiming to follow a S_tra of Pai_h_nasi, the text was composed by an otherwise unknown _r_dhara in Orissa in the 16th century CE. His work is a precious late-medieval witness to the Atharvavedic tradition, preserving archaic features dating from the Vedic period, but also showing much influence from various non-Vedic traditions that have been prevalent in this part of eastern India. The critical edition, which will be complete in three volumes, is based on six palm-leaf manuscripts written in Oriya script. This first volume contains an extensive introduction followed by the first nine chapters of text that describe the general paradigms of domestic ritual in this tradition.