Greetings. The fact that you've called this a basic question, implies that you may actually know the answer already, and know that Muslims do not pray in temples and do not pray to an elephant figure with arms.
But, since you asked, Hindus believe in incarnations of God, as Christians do. Christians believe Jesus (peace be upon him) is God incarnate. Hindus believe in various other human incarnations of God, and also animal incarnations.
Muslims do not believe there are any incarnations of God.
For your information, here are some of the points about the Islamic concept of God summarised, and you can see exactly what we believe for yourself:
There is only One God. He alone should be worshipped. He is our Creator, Sustainer, Cherisher, and Lord. No being, no object, nothing other than Him, is worthy of prayer/worship.
He does not beget, nor is He begotten. He has no sons, daughters, siblings, parents, cousins, or relatives of any sort.
He is eternal and does not die.
He does not depend on anyone/anything yet we all depend on Him. He is free of all want and need.
There is nothing like Him. He is all Hearing, all Seeing, all Knowing, all Powerful, the Creator of the Universe.
He did not and does not, dwell in human or animal bodies, nor are there any incarnations of Him. He is not mixed up in His creation in any way.
He is not composed of persons, nor a trinity. There are no secondary, lesser, greater, equal, or multiple gods, no intermediaries, and no denying of God's existence either.
There are no sharers or associates or parts whatsoever in His exclusive Divinity. Simply, He is One, in every sense.
Peace.