It is only the less intelligent persons not well versed in the history of the world who say that observance of separation of female from male is an introduction of the Mohammedan period in India
SB Canto 1
Out of a loving desire to see the Lord, the royal ladies of the Kurus got up on top of the palace, and smiling with affection and shyness, they showered flowers upon the Lord.
Shyness is a particular extra-natural beauty of the fair sex, and it commands respect from the opposite sex. This custom was observed even during the days of the Mahābhārata, i.e., more than five thousand years ago. It is only the less intelligent persons not well versed in the history of the world who say that observance of separation of female from male is an introduction of the Mohammedan period in India. This incident from the Mahābhārata period proves definitely that the ladies of the palace observed strict pardā (restricted association with men), and instead of coming down in the open air where Lord Kṛṣṇa and others were assembled, the ladies of the palace went up on the top of the palace and from there paid their respects to Lord Kṛṣṇa by showers of flowers. It is definitely stated here that the ladies were smiling there on the top of the palace, checked by shyness. This shyness is a gift of nature to the fair sex, and it enhances their beauty and prestige, even if they are of a less important family or even if they are less attractive. We have practical experience of this fact. A sweeper woman commanded the respect of many respectable gentlemen simply by manifesting a lady's shyness. Half-naked ladies in the street do not command any respect, but a shy sweeper's wife commands respect from all.
Human civilization, as conceived of by the sages of India, is to help one free himself from the clutches of illusion. The material beauty of a woman is an illusion because actually the body is made of earth, water, fire, air, etc. But because there is the association of the living spark with matter, it appears to be beautiful. No one is attracted by an earthen doll, even if it is most perfectly prepared to attract the attention of others. The dead body has no beauty because no one will accept the dead body of a so-called beautiful woman. Therefore, the conclusion is that the spirit spark is beautiful, and because of the soul's beauty one is attracted by the beauty of the outward body. The Vedic wisdom, therefore, forbids us to be attracted by false beauty. But because we are now in the darkness of ignorance, the Vedic civilization allows very restricted mixing of woman and man. They say that the woman is considered to be the fire, and the man is considered to be the butter. The butter must melt in association with fire, and therefore they may be brought together only when it is necessary. And shyness is a check to the unrestricted mixing. It is nature's gift, and it must be utilized.