The location - a hotel lobby somewhere in India
The characters - a Mother in law, Daughter in law
DiL walks into the lobby and suddenly sees her MiL gesticulating urgently at her, indicating that she would like a word in private.
DiL obligingly walks into a poky corner, where the MIL whispers emphatically "ADJUST YOUR G-STRING, it's showing"
DiL, decorously attired in a modest salwar kameez goes "Huh? Whaa?"
MiL,"The g-string, the g-string - you can see it" points to the offending erm..garment
The garment happens to be the end of the salwar string (nada) which can be seen under the edge of the kurta.
Fact, is funnier than fiction.