Hindus or muslims or any people of any other relegion acts by their sentiments if ask them to prove then it would be be difficult to prove. ok. you ask muslim has he seen allah? or hindu has seen bhagwan?, people will say no. so it is difficult to prove their existence. but you can feel their existence. so leave us with our belief because we all know there is some almighty power which control everything. you can call him god, allah, or bhagwan. OK .