6.1.124
इन्द्रे च
Operational rule vidhi
In the context of संहिता, The word गो when followed by the word इन्द्र gets the अवङ्-आदेश.
Word by word (padaccheda)
Right context इन्द्रे saptamī · ekavacanaIndeclinable च avyaya
- Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
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Full reading
इन्द्रे च
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The substitution of अव for the ओ of गो is compulsory when a vowel to be found in the word इन्द्र follows it.
Thus गवेन्द्रः ॥ So also गवन्द्र यज्ञः ॥ The word नित्य is not found in some texts or in Mahabhashya.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.