ya i guess we must wait and watch..
mansi u said that ""Acc 2 these calculations, Prerna shud never have married Anu. 'coz Vishakha luved Any before he got married to Prerna. Accordingly Prerna becomes Anu's mom-in-law, she really shud not have got married to her 'jamai raja'""
but u forgot that although prerna and anurag were not married when vishakha fell in love with anurag,prerna and anurag already had a baby by then and thats prem..so indirectly they were a couple so vishakha dint exactly fit in there as anu's love.