Declension table of ?bṛhatsaṃvarta

Masculine	Singular	Dual	Plural
Nominative	bṛhatsaṃvartaḥ	bṛhatsaṃvartau	bṛhatsaṃvartāḥ
Vocative	bṛhatsaṃvarta	bṛhatsaṃvartau	bṛhatsaṃvartāḥ
Accusative	bṛhatsaṃvartam	bṛhatsaṃvartau	bṛhatsaṃvartān
Instrumental	bṛhatsaṃvartena	bṛhatsaṃvartābhyām	bṛhatsaṃvartaiḥ bṛhatsaṃvartebhiḥ
Dative	bṛhatsaṃvartāya	bṛhatsaṃvartābhyām	bṛhatsaṃvartebhyaḥ
Ablative	bṛhatsaṃvartāt	bṛhatsaṃvartābhyām	bṛhatsaṃvartebhyaḥ
Genitive	bṛhatsaṃvartasya	bṛhatsaṃvartayoḥ	bṛhatsaṃvartānām
Locative	bṛhatsaṃvarte	bṛhatsaṃvartayoḥ	bṛhatsaṃvarteṣu

Compound bṛhatsaṃvarta -

Adverb -bṛhatsaṃvartam -bṛhatsaṃvartāt