The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t15.28

c8.t15.28

The *paricāyya* is, however, covered with bricks in concentric circles. According to Dvārakānātha, 6 equally spaced concentric circles (*agnikṣetre samāntarālānī ṣaṇmaṇḍalāni*) are drawn. The central circle, the *nābhi*, is divided into 8 equal parts. Beginning from the *nābhi*, the second and the third annular spaces are each divided into 16 equal parts ; the fourth annular space is divided into 32 equal parts ; and the fifth and the sixth annular spaces are each divided into 64 equal parts. In this way, 200 bricks are completed for the first layer. There are six different types of bricks, for the dimensions of radial divisions differ from one annular ring to the other (*pratimaṇḍalaṃ karaṇabhedaḥ | evaṃ ṣaṭ karaṇāni*). In the other layer, concentric circles are drawn in the middle of each annular ring and the inner circle (of the first layer) is removed. Here also we have 6 concentric circles but of different radii. The division of the *nābhi* and the succeeding annular rings is the same as before; but the radial lines are to be drawn such that these do not coincide with those of the first layer. All these are done to avoid the overlapping of edges. Here also 6 different types of bricks are used.