according to child psychology literature children lie and its normal and healthy if they do.
if they do not have capabilies of lieing then there is something wrong with their mental development. It does not mean if your child lies he/she will grow up to become a serial liar.
children lie about there names, the things they like to do, anything under the sun intially b/c it gets them out of trouble and they might be testing reactions, and as they get older 4-6 they start to explore more.
whats more is that according to child psychology the better the young liar is the more inteligent the child is. not that he has been in a place raised by liars.
Jagats problem is not lieing but moral and ethics. He lead gauri on and lead anandi on and there was a bit of hanky panky white lieing to save the other person and himself. a serial liar as you mentioned he is ... is a completely different disease. jagaat stumbles and falls but eventually the truth comes forth.
My understanding is the worst thing jagat did was not finish his relationship with Anandi properly with careful consideration to having ruined her life and leaving her with no education or future.
He lacks morality, ethics and responsibilty, and that is generally learnt from home and that is what you would find in psychology literature. over and over again you teach your child through games and play and through leadership and consquences.
Jagat was not taught because as a child the house was concerned with raising Anandi with morals, ethics and responsibilty. They thought if he had the perfect girl he would have the perfect house. He missed out, and he will suffer forever and thats the injustice done against HIM. The lessons that life MUST teach everyone, that most fortunate people learn as children, with small consquences. Life will teach Jagat with adult size consquences.
Anandi is the real child of this house