If you search some history of old Punjab. This used to happen to women. For example: sisters used to get marry to the same man under many circumstances, psychological issues in women for infertility and how the people used to treat the female infertility. In some parts of Punjab, they still follow this norm.
Also many other aspects were covered in the movie such as women education was not considered as important, societal pressure on man to keep their wives under control, change in husband behaviour towards his first wife due to his needs, a role of โpanchayatโ to make any ridiculous decisions about family.
Many serious concepts were covered in the movie by adding humour.