Also when the short a , not being final in a pada , is followed by a guṇa letter, then in the room of both the precedent and the subsequent - the single substitute is the form of the subsequent i.e. the guṇa,
Thus पच् + शप् + अन्ति = पच + अन्ति = पचन्ति so also यजन्ति ॥ This debars lengthening of (VI. I. 101). पच + ए = पचे, यज + ए = यजे, here the Vriddhi is debarred (VI. I. 88). Why do we say \after the short vowel अ?\ Observe या + अन्ति = यान्ति, वान्ति ॥ Why do we say when followed by 'a Guna letter ?' Observe अपच + इ = अपचे, अयजे ॥ When final in a Pada, this rule does not apply : as दण्ड + अग्रं = दण्डाग्रम्, यूपाग्रम्, क्षुद्राग्रम् ॥,