The festival commences on the first day of Chaitra, the day following Holi and continues for 18 days. For a newly-wedded girl, it is binding to observe the full course of 18 days of the festival that succeeds her marriage. Even unmarried girls fast for the full period of 18 days and eat only one meal a day.

Images of Isar and Gauri are made of clay for the festival. In some families, permanent wooden images are painted afresh every year by reputed painters called matherans on the eve of the festival. A distinct difference between the idols of Teej and Gangaur is that the Idol will have a canopy during the Teej Festival while the Gangaur idol would not have a canopy.

The festival reaches its climax during the last three days. Unmarried girls and married women decorate the images and make them look like living figures. At an auspicious hour in the afternoon, a procession is taken out to a garden, tank or a well with the images of Isar and Gauri, placed on the heads of married women.