I'm beginning to hate Hinduism and vedic culture: Please read the article below:

Young couple get death threats for inter-caste marriage

A young couple who had an inter-caste marriage was forced to leave
their home following death threats from the angry members of the girl's
family.

Laxya Bahadur Biswakarma, 21, who had to leave his home
in Bardiya district just because he married a girl from a so-called
high caste, has requested authorities, human rights activists and
concerned individuals in the district for protection for him and his
newly-wedded wife from possible attacks from his in-laws.

Laxya belongs to Dalit community who are ostracized in the society as people of "low caste".

"Due to repeated death threats from my in-laws, we were forced to leave the district," reports quoted Laxya as saying.

Laxya,
a resident of Motipur-6, Bardiya, had eloped with 20-year-old Sirjana
Bastola of the same village on March 3 to get married following their
two-year old love affair.Nepalnews.com

So many questions comes to me after reading this article.
First when did this caste system started in Nepal? We all know that it was in ancient India which it was originated. But how did it find it's way to Nepal?

anyone thanks.