Why are North & South India so Different on Gender?

Everyone knows that Southern and Northern India are very different in culture, language, and socio-economic development. But the most dramatic regional disparity may be in gender relations. Why is this? Is it due to.. Poverty Colonialism Matriliny Cousin marriage Conquests and purdah Labour-intensive cultivation Ancestral crop yields? If you would rather read than listen, the blog is here: https://www.draliceevans.com/post/why-are-southern-north-eastern-indian-states-more-gender-equal