[Answered ]-One project my obj.save() returning object how i did not used commit=Fa;se

When you call .save(…) [Django-doc] on a ModelForm, it will return the instance wrapped in the form, regardless whether commit=True (this is the case if you do not specify the commit=… parameter), or commit=False.

This is often used, for example like in this case where we use the instance of one form, to use this when we work with the second form.