Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Nāgasondi
Nāgasondi:A bathing tank in Cetiyapabbata,restored by Aggabodhi I.(Cv.xlii.28).It is probably the modern Nāgapokuna where,hewn in the face of the rock,the heads of a cobra (nāga) seem to rise out of the water. (Cv.Trs.i.68,n.8)