Today when I watched Ishita, rofling. Mrs. Sherlock bhalla didn't question about their mother while sanju blabbers that she is mihir sister.
this point is for one who tells that she did for bro sis relation and bhallas did mistake by hiding sahgun fiasco.Oh really then why didn't she try help bala subbu case. (Even it hadn't in visual, bala once stated that he fought with subbu about Ishita.). Mihir himself cleared that he broke his relation with his family. so raman let him to live his life. Then what is the need for Ishita to do feviquick job.
This point is one who tells that she has rights to know about her sister would be family. Mihir clearly stated that he ready to accept mihika only if she let his past away.if she can't, then he won't marry her. So we can't blame mihir. He laid a condition and followed it. If Ishita concerns get sister life, then she can advice mihika to break this marriage because she is her sister but she has no rights to make mihir to accept his relation and this marriage.
Who does mistake and whom gets blame. I agree that Raman has no need to hide anything but of mihir objects it's immoral to interfere some ones personal.