Someone please help me

So my mom used to watch this show long long long long ago, I watched a for a few months during Karthik and Naira. Totally missed the whole Sirat thing. Now I know Kairav was Karthik and Naira’s son. WHO ARE these two girls re Baba? I am so confused, who are Akshara and Arohi? Whose kids are these? Mera dimaag is confused, sorry sorry I know I am asking obvious question but feeling too lazy to go and see all previous episodes. Planning to check out show becos I am amazed how Harshad whose first show was in 2009 , only a year after the first YRKKH which released with Hina khan in 2008. I mean in the TV world, he is as old as the girls grandfather….jussayin. He is soooo cute and yummy

Ok just figured it out. I am still shocked that the actor playing the male love interest is 16 years older than the female lead.