As stated in the Viṣṇu Purāṇa:
And as stated in the Hari-vaṁśa:
- kaṇṭakībhiḥ pravṛddhābhis
- tathā kaṇṭakībhir drumaiḥ
- abhiguptaṁ samantataḥ
There was no need to make fences all around. One side was already defended by thorn trees, and thus the thorn trees, the bullock carts and the animals encircled the inhabitants in their temporary residence.