Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Gangāsiripura
Gangāsiripura:The Pāli name for the town of Gampola in Ceylon (Cv.xxxxvi.18).In it was an ancient vihāra,the Nigamaggāmapāsāda (Cv.lxxxviii.48).Bhuvaneka-bāhu IV.made it his capital.Cv.xc.107.