महानवमी
Mahā Navamī · Maha Navami
Wed, 1 Oct, 2025
basis · Āśvina Śukla Navamī — Āyudha-pūjā · Sarasvatī-pūjā in South
Worship of tools, weapons, books · prelude to Vijaya Daśamī
Tier-S·(iii)Devī Bhāgavata Purāṇa · Skanda 3
विजय-दशमी · दशहरा
Vijaya Daśamī · Daśaharā · Dussehra / Vijaya Dashami
Thu, 2 Oct, 2025
basis · Āśvina Śukla Daśamī — Śravaṇa-nakṣatra ideal
Rāma's victory over Rāvaṇa · Durgā's slaying of Mahiṣāsura · effigy burning · Śamī-pūjā
Tier-S·(iii)Vālmīki Rāmāyaṇa · Yuddhakāṇḍa 110-111
पाशङ्कुश एकादशी
Pāśāṅkuśā Ekādaśī · Pashankusha Ekadashi
Fri, 3 Oct, 2025
basis · Āśvina Śukla Ekādaśī
Removal of bondage (Yama's noose)
Tier-S·(iii)Padma Purāṇa · Uttara-khaṇḍa (Ekādaśī-māhātmya)
करक-चतुर्थी · करवा चौथ
Karaka Caturthī · Karvā Cauth · Karva Chauth
Fri, 10 Oct, 2025
basis · Kārtika Kṛṣṇa Caturthī (Pūrṇimānta) — moon-rise sighting required
Sumaṅgalī vrata for husband's longevity · evening fast broken at candrodaya
Tier-S·(iii)Skanda Purāṇa · Brāhma-khaṇḍa 8
रमा एकादशी
Ramā Ekādaśī · Rama Ekadashi
Thu, 16 Oct, 2025
basis · Kārtika Kṛṣṇa Ekādaśī
Lakṣmī-Devī's blessing
Tier-S·(iii)Padma Purāṇa · Uttara-khaṇḍa (Ekādaśī-māhātmya)
काति बिहू · कोङ्गाली बिहू
Kāti Bihū · Koṅgāli Bihū · Kati Bihu / Kongali Bihu
Fri, 17 Oct, 2025
basis · Tulā Saṃkrānti — sober autumn observance · lamp-lighting in fields
Tulasī plant honoured · earthen lamps lit in paddy fields for crop protection
Tier-W·(vii)Assamese folk tradition + Sūrya Siddhānta saṃkrāntiAssam
तुला-संक्रान्ति
Tulā Saṃkrānti · Tula Sankranti
Fri, 17 Oct, 2025
basis · Sun enters sidereal Tulā (rāśi boundary @ 180° sid.)
Sun enters Libra — autumnal balance, Pitṛ-pakṣa midpoint
Tier-S·(iii)Sūrya Siddhānta — Bhū-pariveṣa Adhyāya
धन्वन्तरि-त्रयोदशी · धनतेरस
Dhanvantari Trayodaśī · Dhanteras · Dhanteras
Sun, 19 Oct, 2025
basis · Kārtika Kṛṣṇa Trayodaśī (Pūrṇimānta) — pradoṣa-vyāpinī
Dhanvantari's emergence with amṛta-kalaśa · gold and metal-purchase auspiciousness
Tier-S·(iii)Padma Purāṇa · Uttara 100
नरक-चतुर्दशी · रूप-चतुर्दशी
Naraka Caturdaśī · Rūpa-Caturdaśī · Naraka Chaturdashi
Mon, 20 Oct, 2025
basis · Kārtika Kṛṣṇa Caturdaśī — pre-dawn abhyaṅga-snāna
Kṛṣṇa slays Narakāsura · pre-dawn oil bath rids 14 worlds of impurity
Tier-S·(iii)Bhāgavata Purāṇa · Skanda 10.59
दीपावली · लक्ष्मी-पूजा
Dīpāvalī · Lakṣmī-pūjā · Diwali / Deepavali
Tue, 21 Oct, 2025
basis · Kārtika Amāvāsyā (Pūrṇimānta) — pradoṣa- + niśīthā-vyāpinī
Lakṣmī-pūjā · Gaṇeśa-Sarasvatī simultaneous invocation · Rāma's return to Ayodhyā · row of lamps
Tier-S·(iii)Padma Purāṇa · Uttara 124 · Skanda Purāṇa Brāhma-khaṇḍa 8
गोवर्धन-पूजा · अन्नकूट
Govardhana Pūjā · Annakūṭa · Govardhan Puja / Annakoot
Wed, 22 Oct, 2025
basis · Kārtika Śukla Pratipadā — day after Dīpāvalī amāvāsyā
Kṛṣṇa lifts Govardhana-mountain · 56-bhoga annakūṭa offering
Tier-S·(iii)Bhāgavata Purāṇa · Skanda 10.24-25
यम-द्वितीया · भाई दूज
Yama-Dvitīyā · Bhāī Dūja · Bhai Dooj / Yama Dwitiya
Thu, 23 Oct, 2025
basis · Kārtika Śukla Dvitīyā — aparāhṇa-vyāpinī
Yama and Yamī's reunion · sister marks brother's tilaka · long-life blessing
Tier-S·(iii)Skanda Purāṇa · Brāhma-khaṇḍa 9
षष्ठी-पूजा · छठ पूजा
Ṣaṣṭhī Pūjā · Chaṭha Pūjā · Chhath Puja
Mon, 27 Oct, 2025
basis · Kārtika Śukla Ṣaṣṭhī — 4-day Sūrya-Ṣaṣṭhī observance peak
Sūrya-Devatā and Ṣaṣṭhī-Devī worship · arghya at sunset and sunrise (Bihar, Eastern UP)
Tier-S·(iii)Brahma-vaivarta Purāṇa · Prakṛti-khaṇḍa 43Bihar / Eastern UP