Anna is Convinced

Anna is praying to God and asking him for help so that she can choose between Manav and Sharad and on the other end Sharad is also praying to God and asking him to make Anna fall in love with him. Meanwhile, the men are dressed in Victorian attire and begin their bachelors' party where Ronnie is dressed up as a lady and performs in front of all the other men. The ladies get an idea to be a part of the bachelor's party that the men will be a part of. What is this idea?