gaṅgāra - of the Ganges; mahattva - opulences; sādhya - subject matter; sādhana - means; tāhāra - of that; viṣṇu-pāda-utpatti - her origin from the lotus feet of the Lord; anumāna - called anumāna (hypothesis); alaṅkāra - an ornament.

“The real glory of mother Ganges is that she has grown from the lotus feet of Lord Viṣṇu. Such a hypothesis is another ornament, called anumāna.