The case-affix es (sup) and the affixes having an indicatory pa (pit) are anudātta,
This is an exception (apavada) to the last aphorism. As दृसदौ 'two stones'; the case-affix औ is anudatta; so also तृपदः; so also पचति; The third person singular affix तिप् has an indicatory प, and is anudatta. But not पचतः.,