If i would have been Sudha and the amount of investigation she has done, i would have got to know of many things to insult IshRa badly.
My points of insult would have been :
1) To Raman - u r a ROBOT and not even a servant as Servant also have a brain of their own but you run on Ishita's instructions.
2) To Aaliya - The parents whom you are boasting about couldnt get you justice during their own Son's EMA. They got the child on your head. So much to speak about being compassionate towards her emotions.
3) To Ruhi & the whole Bhalla family - when they could forgive their own sister of so many crimes then why was Dr. Rajat dragged to the court.
4) Ishita's, Adi, Ruhi, Pihu's Jail term.
5) Raman's illegal business.
6) Raman's almost marriage with his SIL , Mihika and family rejoicing with Wife present.
Since Raman was a big Man from the serials inception and was eye candy of Media, all the above points will be available in the internet easily and Sudha only needed to dig a little to find out the truth.
The above points are real SLAPGATES for Bhalla family and not the little things which Sudha ji keeps throwing here and there.