New to the show

Hey everyone! As the titles states, i m completely new to this show and recently started watching it after the leap since my zain entered. N i must say, this show has a perfect couple w a perfect chemistry and as always my zain rocks. So since i really dont know the backstory and anout avni and why she wants revenge and who is aisha ma and aman, if someone can give me a quick overview of the story that can help me understandt he story better then that would be great. Also what is this illegitimate thing going on? Im supper comfused so if any1 can tell me anything about the show i will be thankful. Cheers!

Dayawanthi mehta's DIL s Aisha but she never acknowledge her as daughter in law. Aisha wife of Ashish. Aisha is Avni's mom and Aman her son Avni's brother. Daya killed Aisha later killed Avni too but Avni s alive Daya has no knowledge about it and Avni comes back as ananya. Anvi wants to take revenge for her mom death and get back her brother.