tatra there, yathānyāyam as per shastras, pramāṇata: with standard measurement, iṣṭakā: bricks, kāritā were made, śulbakarmaṇi in the science of construction using a measuring rope, kuśalai: accomplished, brāhmaṇai: brahmins, agni: sacrificial fire place, cita: gathered and laid bricks were prepared as per standard measurment mentioned in shastras.
The sacrificial fire-place was constructed with bricks with standard measurement by brahmins who were experts in the art of measuring land with a string or single strand.