Nih betrayed Ant. which form a hatred between them.
Ant. raped Nih. because she stopped his second marriage, was insulting him, lied and cheated on him.
Nih. faked a seconde rape, which ended with both rudra and ant. in the hospital.
She ensured that he found out that sundari is his mother
She always hate him because he raped her.
She threw the family out
She turned her back on her sister and nephew
Ant. tried to kill her with a gun then he tried to push her off a cliff (which was just so shivam could save her) he killed rudra
She put drhuv in jail and she had a hand in killing rahul
There is a lot more, but these two hate each other and gets away with a lot of crime that they commit
I think they are both evil and they cause each other pain thye bring out the worse in each other
What do you all think?