[Answered ]-Nested dict in Django model

You just need to represent it using 1 to Many relationships.

1 VSRGraduation instance can be pointed by Many LimitValues instances

1 LimitValues instance can be pointed by Many LimitValuesState instances

class LimitValuesState(models.Model):
   stateDescription = models.TextField()
   limitvalue = models.ForeignKey(LimitValues)

class LimitValues(models.Model):
    vsr_graduation = models.ForeignKey(VSRGraduation)


class VSRGraduation(models.Model):
     #extra model fields