Manasara 30.10

30.10

dvyaṃśānupañjaraśālā tadardhaṃ cāntarālakam
anuśālā tribhāgaṃ syādekāṃśamantarālakam

the secondary horseshoe-niche hall is two parts, and its recess space is half of that; / the secondary barrel-vaulted hall should be three parts, and the recess space is one part;