For those initiated into the Mahāvidyā krama, worship of Goddess Durgā during Navarātra is accomplished in three ways.
Uttama Kalpa or the Superior way
In this method, aṣṭādaśabhujī Ugracaṇḍā is invoked within a Triśūla or Karavāla (scimitar) during the noon of āśvina kr̥ṣṇa navamī. Jagadambā is worshiped for sixteen days till āśvina śukla navamī and visarjana is done on daśamī tithi.
Madhyama kalpa or the mediocre way
In this method, ṣōḍaśabhujī Bhadrakālī is invoked within a ghaṭa, yantra or an idol during the morning of āśvina śukla pratipat. And worshiped for nine days. Visarajana is done on daśamī.
Adhama kalpa or the inferior way
In this method, daśabhujī Kātyāyanī is invoked within Bilva-patra during the evening of āśvina śukla ṣaṣṭhī and worshiped for three days. Visarajana is done also on daśamī.
Our lineage prescribes the Ugracaṇḍā kalpa where Bhagavatī is invoked during the noon on āśvina kr̥ṣṇa navamī in a Kaṟavāla and worshiped through āvaraṇapūjā using the thirty-two lettered mantra of Ugrachaṇḍā. In my personal worship, a miniature silver Triśūla is used for the sake of utility. Such worship is continued till amāvāsyā. On pratipat, ghaṭasthāpanā is carried out and the Karavāla is placed on top of the ghaṭa. Each of the next nine days, the Navadurgā-s are worshiped:
1 Rudracaṇḍā
2 Pracaṇḍā
3 Chaṇḍōgrā
4 Chaṇḍanāyikā
5 Chaṇḍā
6 Chaṇḍavatī
7 Chaṇḍarūpā
8 Aticaṇḍikā
9 Ugracaṇḍā
In the case of Bhadrakālī kalpa, the formal worship begins on the day of ghaṭasthāpanā and the following ṇavadurgā-s are worshiped:
1 Shailaputrī
2 Brahmacāriṇī
3 Chandraghaṇṭā
4 Kūṣmāṇḍā
5 Skandamātā
6 Kātyāyanī
7 Kālarātri
8 Mahāgaurī
9 Siddhidātrī
In the case of Kātyāyanī kalpa, though the worship is limited to three days, the ghaṭasthāpanā is done on pratipat. Till the morning of ṣaṣṭhī, worship is carried out using the aṣṭākṣara mantra of Muladurgā. The same evening, Kātyāyanī is invoked in Bilva and Navapatrikā (nine herbs), placed on the ghaṭa and worshiped for the remaining three days.
Shukla Pratipat
Morning:
1 Gaṇapati is worshiped with his mūlamantra
2 Tripurā is worshiped in Trailokyamohana Chakra with yellow flowers and ornaments
3 One-year-old Kanyā is worshiped as Shraddhā
4 Suvāsinī is worshiped as Hr̥llēkhā
5 Vaṭuka bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Rudracaṇḍā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening
1 Lakṣmīgaṇapati is worshiped with his mūlamantra
2 Dakṣiṇākālī is worshiped in her āvaraṇa with the corresponding mūlamantra along with Mahākāla and deities of Dakṣiṇāmnāya
Shukla dvitīyā
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripurēśī is worshiped in Sarvāśāparipūraka Chakra with white flowers and ornaments
3 Two-year-old Kanyā is worshiped as Bālā
4 Suvāsinī is worshiped as Gaganā
5 Yoginī bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Pracaṇḍā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Ekākṣaragaṇapati is worshiped with his mūlamantra
2 Mahogratārā is worshiped in her āvaraṇa with the corresponding mūlamantra along with Akṣōbhya and deities of adharāmnāya
Shukla tr̥tīyā
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripurasundarī is worshiped in Sarvsaṁkṣōbhaṇa Chakra with ruddy flowers and ornaments
3 Three-year-old Kanyā is worshiped as Lalitā
4 Suvāsinī is worshiped as Raktā
5 Sarvabhūta bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Chaṇḍōgrā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Vallabhagaṇapati is worshiped with his mūlamantra
2 Bālā tripurasundarī is worshiped in her āvaraṇa with the corresponding mūlamantra along with Tripurēśvara and deities of ūrdhvāmnāya
Shukla caturthī
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripuravāsinī is worshiped in Sarvasaubhāgyadāyaka Chakra with green flowers and ornaments
3 Four-year-old Kanyā is worshiped as Mālinī
4 Suvāsinī is worshiped as Mahocchuṣmā
5 Kūṣmāṇḍa bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Chaṇḍanāyikā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Ucchiṣṭagaṇapati is worshiped with his mūlamantra
2 Guhyakālī is worshiped in her āvaraṇa with the corresponding mūlamantra along with Guhyeśvara and deities of uttarāmnāya
Shukla pañcamī
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripurāśrī is worshiped in Sarvārthasādhaka Chakra with red flowers and ornaments
3 Five-year-old Kanyā is worshiped as Vasundharā
4 Suvāsinī is worshiped as Karālinī
5 Kṣētrapāla bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Chaṇḍā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Gaṇādhipati is worshiped with his mūlamantra
2 Vedamātā Brahmagāyatrī is worshiped in her āvaraṇa with the corresponding mūlamantra along with deities of ūrdhvāmnāya
Shukla ṣaṣṭhī
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripuramālinī is worshiped in Sarvarakṣākara Chakra with kumkuma colored flowers and ornaments
3 Six-year-old Kanyā is worshiped as Sarasvatī
4 Suvāsinī is worshiped as Icchā
5 Rājarājēśvara bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Chaṇḍavatī is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Viriñcigaṇapati is worshiped with his mūlamantra
2 Bhuvanēśvarī is worshiped in her āvaraṇa with the corresponding mūlamantra along with Sadāśiva and deities of pūrvāmnāya
Shukla saptamī
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripurāsiddhā is worshiped in Sarvarōgahra Chakra with red-colored flowers and ornaments
3 Seven-year-old Kanyā is worshiped as Ramā
4 Suvāsinī is worshiped as Jñānā
5 Gaṇapati bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Chaṇḍarūpā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Kṣipraprasādana gaṇapati is worshiped with his mūlamantra
2 Triśakti cāmuṇḍā is worshiped in her āvaraṇa with the corresponding mūlamantra along with Mahābhīṣaṇa Bhairava and deities of upāmnāya
Shukla aṣṭamī
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripurāmbā is worshiped in Sarvasiddhiprada Chakra with red-colored flowers and ornaments
3 Eight-year-old Kanyā is worshiped as Gaurī
4 Suvāsinī is worshiped as Kriyā
5 Sarvadevatā bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Aticaṇḍikā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening:
1 Vighna gaṇapati is worshiped with his mūlamantra
2 Navaratnakubjikā is worshiped in her āvaraṇa with the corresponding mūlamantra along with Navātmēśvara and deities of paścimāmnāya
Shukla navamī
Morning:
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Tripurabhairavī is worshiped in Sarvānandamaya Chakra with red-colored flowers and ornaments
3 Nine-year-old Kanyā is worshiped as Durgā
4 Suvāsinī is worshiped as Durgā
5 Kurukullā bali is offered
Noon:
1 Kulagaṇapati is worshiped with his mūlamantra
2 Mahogracaṇḍā is worshiped in her āvaraṇa with the corresponding mūlamantra
Evening
1 Mahāgaṇapati is worshiped with his mūlamantra
2 Lalitā Mahātripurasundarī is worshiped in her āvaraṇa with the corresponding mūlamantra along with Mahākāmēśvara and deities of ūrdhvāmnāya
Shukla daśamī
The sādhaka performs Mahāṣōḍhā, Guhyaṣōḍhā and Kramaṣōḍhā nyāsas followed by the complete worship of the sixteen āvaraṇas of Dakṣiṇāmūrti krama Srīcakra. Bali is offered to all worshiped deities. Shōḍaśavaktrā aṣṭōttaraśatabhujā Nirvāṇa Mahātripurasundarī is worshiped with Daśakūṭā ṣōḍaśākṣarī mahāvidyā, followed by Visarajana and aparājitā pūjā.
Thus concludes the secretive Navarātra vidi of Ugracaṇḍā Kalpa.