Complex sentence: Parvati and Ganga and hence is called "Dvaimatura" and also "Gangeya" (the son of Ganga), ancient inscriptions show son puru born to Yayati the son and the begot the son named gangeya (ganga datta).
Split into simpler sentences: Parvati and Ganga and hence is called "Dvaimatura" and also "Gangeya" (the son of Ganga). Yayati propaganda the son and the begot the son named gangeya (ganga datta).