The inscription is incised on both sides of a quadrangular slab, which was discovered sometime before 1874, standing upright at a spot north of the Häṭadāgē in Poḷonnaruva. The text is mostly in Sinhalese but two Sanskrit stanzas in śārdūlavikrīḍita metre make up the first and last five lines; these stanzas are separated from the rest of the text by fish emblems. The inscription gives an account of the parentage and ascent to the throne of Siri San̆gabo Kāliṅga Vijaya-Bāhu, noting that he was the (half-)brother of king Niśśaṅka-Malla and assumed the biruda epithet Sāhaṣa-Malla. It then records that Sāhaṣa-Malla appointed the general Lak-Vijaya-Sin̆gu-Senevi as his prime minister and granted him much wealth.
Whereas most Sri Lankan inscriptions of this period are dated only by the regnal years of ruling monarchs, this record contains a date in the Buddha-varṣa and thus provides a fixed point of historical reference within broader chronologies of the period. The date given in the inscription is 1743 years, 3 months and 27 days of the Buddhavarṣa, Wednesday, the twelfth day of the bright fortnight of the lunar month of Binera (Bhādrapada, Aug.-Sept.). Following Fleet (1909: 331), Wickremasinghe identified this date with Wednesday 23 August 1200 A.D. It refers to Sāhasa-Malla’s anointment as king and not the incision of the inscription. However, the grant recorded in the inscription is described as having taken place in the first year of the king’s reign (between August 1200 and August 1201 A.D.).