I am reverted muslim, i was hindu ten years back.
My Dear brother in islam welcome!
Salam alaikum,
Hinduism is different than Islam, hindu pray lots of GOD inspiteof knowning the fact that their is only one GOD. But because they have been doing since many generations so its not wrong for them, and idols is very good for concentration according to their scholers. They are far away from their original Books like Vedas and Upnishads.
I hope i have cleared ue doubts