how menka know kabir is saras bro

I knew she is taking revenge on guman but to know kabir truth is out my mind that means she may know where is saras mother or she may help her when she dying .so much confusion on kabir . She has used kabir to destroy her enemy and may be she told him how she use to treat saras when he was a kid too who knows . Let's wait n see hw she know him

3 possibilities I think:

Saraswati survived and gave birth to Kabir but died shortly after. Doesn't explain how Menka would know about Kabir though.

Or Saraswati gave birth to Kabir before the suicide incident and Gumaan might have had him placed in orphanage and declared stillborn...then Menka might have found him or might even have kept track of him for all these years to tell him the truth and guve him so much hatred and bitterness that he agreed for her plan.
And 3rd possibility is that Saraswati is alive. Maybe she's still in a devastated state/zinda lash, which is why. Kabir is so sensitive whenever he hears the mention of his&Saras's mom..and then somehow Menka managed to find them.

I wonder if Guman did something to Kabir after he as born? Had Saraswati think that she had a stillborn child and that made her even more depressed and suicidal? Maybe Guman was afraid that LN wont leave Saraswati if they have a second child?

It is all very mysterious.

Hi,