As many of us were confused about this, I went onto the SP official website and got out the part which says Anant found out about Renuka's divource, and is only waiting for Navya to tell him. Posted below is the excerpt and the link.
Renuka decides to divorce Gautam
Anant is happy as the Bajpai's have postponed the wedding. Renuka tells her family about Gautam's extra marital affairs. Deepak decides to talk to Gautam. Meeta is against Renuka's decision of seeking divorce but Deepak supports Renuka as he doesn't want to spoil her life. Renuka decides to start working in order to help her family financially. Renuka prepares for an interview. She gets perturbed when Meeta feels her decision is wrong. Anant overhears their conversation and learns of Renuka's divorce. Anant tries to inquire about the same from Navya who tires her best to hide the issue. Meeta tells Deepak not to take a hasty decision about Renuka's life. Deepak wishes good luck to Renuka on her interview. Renuka requests Meeta to believe her. Deepak and Meeta go to meet Gautam.
Link: http://starplus.startv.in/recaps.aspx?sid=118
Cheers,
Ritchelle