Where does “इस्लामाबाद” come from?

इस्लामाबाद (Hindi) comes from Urdu اِسْلام آباد.

Ancestry of “इस्लामाबाद”, step by step

Step	Language	Word	Meaning
1	Urdu	اِسْلام آباد	—

इस्लामाबाद — Etymology, Origin & Word History | Etymology Explorer