It's really important for Abhi to have solid faith in pragya moving forward from this point- to the point that he can never distrust his wife again.
The buildup and reveal need to be so strong in order to accomplish this. The way I see it, one of these three witches need to make a huge mistake. If they are caught they have Aakash to blame at this point.
Whatever happens, Abhi's faith in her has to be resolute after she proves her innocence.
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