यतो मुखं भवेद्भाण्डं द्वारं नेपथ्यकस्य च । सा मन्तव्या तु दिक् पूर्वा नाट्ययोगे न नित्यशः ॥ ११॥
The direction where the front of the properties and the backstage door face should be considered as the eastern direction, but it is not to be fixed permanently in theatrical practice.
english translation