what's the literal meaning of 'Ganpati Bappa Maurya'.

I don’t know the literal meaning but I think it has to do with “long live Ganesh” or “Ganesh is omnipresent” – Ganesh being the Hindu deity of removing all obstacles. Am not authoritative on this – so you may want to to double check.

Ganapathi Bappa Maurya is Marati language. It means Welcoming Ganapathi.

Ganapathi Bappa Maurya is Marati language.It means that ganpathy tum mere ho.

Maurya emperors who were very secular and promoted buddhism, jainism as well as hinduism. Maurya belongs to khatriya solar race. Perhaps one Maurya emperor was a great devotee of ganpati and his dynasty’s name is added with God Ganesh to give honour to his devotism