How is Zoyas dad related to the Siddiqui family?

Hey guys I started watching Qubool Hai in January and want to know more about Razia's husband and Razia! How are they related to Ayaan and Rashid?? Thanks in advance!

Shireen is Gaffur's "sister". From what I know, they are not blood-related. Also Gaffur and Rashid r business partners.

Siddique is zoya's father who was the patner in crime fo her mother's death

siddique is zoya's father... zoya is siddiques first wife's daughter if i am not mistaken or maybe she was an illegimate child.. not sure about it.. siddique left her n her mom a long time back n he had to marry razia due to family pressure... zoyas aapi n jeeju adopted her..
now zoya came to india to find her father.. but razia and tanveer paid a person who told her that her father is dead... now she got to noe from tanveer that her father is alive and most probably on jashn e eid she will get to noe about her and siddiques relationship..!!
n razia killed zoyas mom... the skeleton in the gurya factory was of zoyas mom... n razia has confronted all her sins in front of badi bii... so badi bi also noes about it...!! but badi bi doesnt noe that zoya onlyy is siddiques daughter..!!