بـسـم الله والحـمـد لله والـصلاة والـسـلام عــلى رسـول الله، وبـعـد
Referring to Allaah by the names of pagan and other “gods” like the Hindu “gods”: “Brahma” (Creator), “Vishnu” (Sustainer) or the Christian “god”: “Abb” (the loving Father) or as the pagan “god”: “Thor” (the “god” of thunder) is not correct; and accordingly naming people as `Abdul-Brahma, `Abdul-Vishnu or `Abdul-Abb is not correct.
The names Brahma, Vishnu etc. are proper nouns, which have already been assigned to the pagan "gods".
Allowing the people to refer Allaah as “Brahma” only because “Brahma” means al-Khaaliq (the Creator) or “Vishnu” because it means al-Rabb (the Sustainer) is not a justified reasoning. Rather this type of reasoning is a gateway to other evils as it does not stop here. According to this “reasoning”, it becomes justifiable to refer Allaah as “Lakshmi” (the Hindu “goddess” of wealth and prosperity) because from the Names and Attributes of Allaah is “Al-Ghaniyy” (the All-Sufficient) and “Al-Mughni” (the One who enriches). And Allaah’s help is sought from this evil. And free is Allaah of what they attribute to Him.
It is a grave injustice when a person speaks about Allaah without knowledge, and attributes to Him سبحانه وتعال without any textual authority.