Navratri, one of the important, sacred and colorful festival in Hindu Religion. Navratri worships Goddess Durga as Nav Durga. Moreover festival is about knowing and praying various forms of Goddess which are the epitomes of power. These feminine aspects have the ability to bring in anything desired.
In particular Vedic Gods are the deities of the vedic times and different from the deities popular in modern times. You might have heard that there are 33 crores Gods in Hinduism. The reason behind is that scriptures used the term 33 Koti Gods and Goddesses.
Mahavidyas are the esoteric form of Shakti. Tantra reveals their mysterious, powerful and true form. Each aspect of 10 mahavidya breaks societal norms and shows powers of women over men to convey no one should be differentiated on the basis of gender or looks. Denying the social norms mahavidyas represent the form of Shakti. She is warrior, protector, epitome of beauty, giver of all comforts, nurturer and giver of salvation.