She went crazy even for Malhar. It's not only for aai and pillu. She's like this for everyone. Infact she even risked her life to save sampu in the lift when it broke. Only thing is she does the same thing everytime with no growth in her character. She should be shown becoming smarter and more mature but that does not happen. Malhar also becomes harishchandra only when it's aai or Kalyani involved. Why should he be directly involved?! Koi aur policevaala hi nahi hai kya aurangabad main. Everycase he investigates is related to his own family!