If kamla know that she try to protect pakhi from raghav torture
Selfish kalpi never do this even knowing the truth becoz she want pakhi to suffer
raghav did not marry kalpi but he did not done any fraud (i.e. dhoka)
I know pakhi marry raghav becoz she didnot know that raghav loves kalpi
But kalpi know everything but she did not tell this truth to kamla becoz she want pakhi to suffer revenge from raghav