Even neighbours wouldn't have known R married M because it was late night marriage inside house with just priest, family, police, NGO women.π³Since R wanted to boast her new found status and rights of biwi/bahu in Trivedi neighborhood she was shown to purposely invite neighbours for mooh dikhai rasamas, Shivratri, Holi events.
R missed calling office staff to these rasams/events to showoff she is maalkin, may be because at that time she didn't even properly know office address.
If still M's office staff is oblivious to who is R's husband? then may be something is in store about 'who her husband ?' plot by writers.π€ Staff only knows part info that being unqualified, untrained R still got a job only due to Trivedi's recommendation.