kapoor kandaan and kusum mahis plan

hey guys dont you wonder how come this family i mean kapoor family didnt hear any conversation between mahi and real kusum at this moment. i wonder they all leave in the same house but mahi and kusum used to talk a biter conversation every time after one of them plan succeeded. let see how kusum talk to mahi and how mahi talk to kusum after kapoor family disagree to sign the paper. that is suprising no body from kapoor family hear the conversation between mahi and real kusum. on the same house???!!!! to know how truth is ???? to hear what was the meaning of the plan of mahi and kusum i wonder all of this family is dumb , no eyes no ears and even no comon sense. 😡