Re: Islam main Parda!
It is a misconcept that ihram prohibits covering the face in hajj. The reality is that cloth touching the face as in Niqaab is prohibited by the prophet SAW. The wives of the Prophet and those of the companions would cover their faces while seperating the cloth from the face using their hands when they would see a non-mehram coming near.
Now, hijaab according to most scholars including face covering. But whether is it mandatory or not, requires more understanding. Some scholars believe it is not mandatory but a matter of TAQWA (fear of AllahSWT) that a women hides her beauty which the face is also a big part of with the veil. We see these days that many times, youth fall for some actress or model just because of her face. So the face is a big source of attraction for men.
The last group of scholars think that face veil is not necessary at all. This group among scholars is the smallest however.
Wallahu Alam
May Allah SWT increase our zeal for His obedience and love for Islam (ameen)
Here is really good detailed read on the subject..