Gargi, the wise and learned daughter of Rishi (sage) Vachaknu, was known as Brahmavadini because of her having the knowledge of Brahma-vidya. She participated in a debate with the knower of Brahma, Yajnavalkya in the Yajnasala ( place for sacrifices ) of King Janaka. We get in the Brhadaranyaka Upanisad a dialogue between Gargi and Yajnavalkya. Thus it is evident that in ancient India, women used to obtain knowledge of many sciences and disciplines. They also used to participate in public functions and take part in intellectual debates. There used to be no ban of any sort in the field of knowledge, this is established very clearly from the account of Gargi's life.
2. Sita Sita in the Valmiki Ramayana is not exactly representative for Vedic stridaharma. To begin with, she chooses her own husband in a competitive svayamvara, only the strongest and the smartest prince will do. Again, after Kaikeyi's intervention, when Rama goes into forest exile, she insists on accompanying him. Sita's strength and self-possession are apparent. She is dutiful, indeed, but she has to argue her case in order to do what she knows is right. She is not an obedient servant to a godlike husband; she has a will of her own and her relationship to Rama is governed by love for him, rather than obedience to his orders. She shows her determination and independence throughout the years in the forest; her insistences that Rama get the gold-spotted deer and her command that Laksmana come to his rescue, eventually leads to her abduction by Ravana. She shows self-control and she doesn't give in to Ravanna's will. On being freed, she defends herself whole-heartedly against Rama's accusations. She is far from passive. It is in the context of this "dwelling in another man's house" that Vedic regulations for women are invoked and popular sentiment demands an ordeal to prove her purity. This strength of character has not gone unnoticed by Indian women, who have found much in her to applaud.