That was permission fault. If i set it to 777 it totally works (i did something wrong last time as it did not worked then, maybe did for wrong folder)!
But i know that its not safe! I m really bad in ubuntu to set permission in correct way.
What is the correct way to allow uploads?
I think the permission you want is either 744 or 755.
Here is a link that might help you determine which permission you may need. In the document, it shows you what all 3 categories represent and what the permissions mean.