Grammatical Sūtra: छन्दस्युभयथा chandasyubhayathā
Individual Word Components: chandasi ubhayathā
Sūtra with anuvṛtti words: chandasi ubhayathā aṅgasya (6.4.1), asiddhavat (6.4.22), aci (6.4.77), yaṇ (6.4.81), eḥ (6.4.82), anekācaḥ (6.4.82), asaṁyogapūrvasya (6.4.82), na (6.4.85)
Type of Rule: vidhi
Preceding adhikāra rule:6.4.46 (1ārdhadhātuke)

Description:

In the Chhandas, in the case of a stem in ((bhū)) and ((sudhī)), are found sometimes the ((iyaṅ)), ((uvaṅ)) and sometimes the semivowel substitution. Source: Aṣṭādhyāyī 2.0

In the Chándas both (ubhyá-thā) [iya̱Ṅ-uva̱Ṅ 77 and ya̱Ṇ 81 replace the áṅga 1 final 1.1.52 phoneme of the nominal stems 4.1.1 bhū `becoming' and su-dhī- `shrewd' 85 before 1.1.66 sUP triplets 83 beginning with a vowel 77]. Source: From Aṣṭādhyāyī of Pāṇini In Roman Transliteration translated by Sumitra M. Katre, Copyright © 1987. Courtesy of the University of Texas Press.

Source:Srisa Chandra Vasu's Aṣṭādhyāyī of Pāṇini

Anuvṛtti: 6.4.22, 6.4.77, 6.4.81, 6.4.82, 6.4.85

Kāśikāvṛttī¹: chandasi viṣaye bhū sudhi ityetayoḥ ubhayathā dṛśyate. vaneṣu citra vibhvam viśe   See More

Kāśikāvṛttī²: chandasyubhayathā 6.4.86 chandasi viṣaye bhū sudhi ityetayoḥ ubhayathā dṛśyate.   See More

Nyāsa²: chandasyubhayathā. , 6.4.86

1.Source: Arsha Vidya Gurukulam
2.Source: Sanskrit Documents