Dressing up for Purim (the Jewish Holiday commemorating the story of Esther) can be a predicament. Apparently in Mumbai, when they say "fancy-dress" and tell you to dress up like you would for Purim, it is always better to ask for clarification.  Otherwise you could cut your facial hair funny, dress up like a cowboy (among Indians) and show up to work to find everyone in fancy-dress attire.  Meaning, women in saris and men in traditional Indian formal-ware.  Oh well, I fit in with my Gan Katan students (5-11 year-olds)....