Phaladeepika
भवनद्वयशून्ये तु शोधयेदन्यमन्दिरम् । समत्वे सर्वगेहेषु सर्वं संशोधयेत्तदा ॥ १७॥
If there be no dots in two of the signs of a group, remove the figure in the third. When all the three signs of a group have the same number of dots, remove all.
english translation
bhavanadvayazUnye tu zodhayedanyamandiram । samatve sarvageheSu sarvaM saMzodhayettadA ॥ 17॥
hk transliteration by Sanscript