A fast is observed
from sunrise to moonrise for the longevity of their husbands. Women begin
preparing for Karva Chauth a few days in advance, by buying (shringar),
traditional adornments or jewellery, and items such as the karwa lamps, matthi,
henna and the decorated puja thali (plate). For more about this festival read:
http://www.indianetzone.com/56/karva_chauth_india.htm