The Hindu lunisolar calendar organises the year into twelve named months, each anchored by a full moon (*Purnima*) in a specific sidereal nakshatra. Each month carries its own cluster of festivals — some celebrating mythological events, some marking agricultural transitions, some commemorating sages or teachers, some performing ancestral rites. This month-by-month walk gives a first overview of the rhythm.
Note on dates: the Hindu calendar is lunisolar, so the same festival falls on different Gregorian (English) dates each year. The shift is typically ±10 days in normal years, ±18 days in Adhik Maas years.
✦ Chaitra (March–April)
Chaitra opens the Hindu new year in most regional traditions. The classical reasoning: the spring equinox falls in this month, and the Sun "begins anew" at Mesha Sankranti.
Major observances: - Gudi Padwa / Ugadi (Chaitra Shukla 1) — New Year in Maharashtra, Andhra, Karnataka. - Chaitra Navratri (Shukla 1–9) — Nine-night worship of Devi, ending in Ram Navami. - Ram Navami (Shukla 9) — Birth of Lord Rama. - Hanuman Jayanti (Purnima) — Birth of Hanuman.
Theme: renewal, new beginnings, the descent of the rains' first promise.
✦ Vaishakha (April–May)
Vaishakha brings high summer to most of India. Many marriage muhurats fall in this month before the rains.
Major observances: - Akshaya Tritiya (Shukla 3) — One of the four "self-luminous" tithis when no muhurat-shuddhi check is needed; auspicious for new ventures, gold purchase. - Adi Shankaracharya Jayanti (Shukla 5) - Buddha Purnima / Vaishakhi Purnima (Purnima) — Birth, enlightenment and Mahaparinirvana of the Buddha (all on the same tithi by tradition). - Vaishakhi (April 13/14) — Solar new year in Punjab and several other regions.
Theme: founding of new things, summer hot before the monsoon.
✦ Jyeshtha (May–June)
The hottest month before the rains. Several festivals focus on water, ancestors and family bonds.
Major observances: - Vat Savitri Vrat (Krishna Amavasya) — Married women fast for the long life of their husbands; banyan tree worship. - Ganga Dussehra (Shukla 10) — Descent of the Ganga from heaven. - Nirjala Ekadashi (Shukla 11) — The strictest of all ekadashis — fasting without water for 24 hours; said to grant the merit of all 24 ekadashis combined.
Theme: cooling, water, sacrifice for family.
✦ Ashadha (June–July)
The monsoon arrives. The day Vishnu "goes to sleep" (Devshayani Ekadashi) marks the start of the four-month *Chaturmas* — the period of monsoon-time austerities.
Major observances: - Devshayani Ekadashi (Shukla 11) — Vishnu's cosmic sleep begins. - Guru Purnima (Purnima) — Honouring teachers; full moon nearest the Vyasa-puja. - Ratha Yatra (Puri) — Lord Jagannath's chariot festival.
Theme: rains, retreat, the teacher-disciple bond.
✦ Shravana (July–August)
The most religiously dense month for Shaivas. Mondays of Shravana (*Shravan Somvar*) are dedicated to Shiva worship; the entire month is one long penance.
Major observances: - Hariyali Teej (Shukla 3) — Women's festival celebrating monsoon; songs and swings. - Nag Panchami (Shukla 5) — Worship of serpent deities. - Raksha Bandhan / Shravani Purnima (Purnima) — Sister-brother festival; tying of *rakhi*. - All Mondays — Shiva fasting and abhishekam.
Theme: monsoon greenery, family bonds, devotion to Shiva.
✦ Bhadrapada (August–September)
A festival-rich month spanning the end of the monsoon. Ganesh Chaturthi opens it; Pitru Paksha closes it.
Major observances: - Hartalika Teej (Shukla 3) — Women's vrat for marital well-being. - Ganesh Chaturthi (Shukla 4) — Birth of Ganesha; beginning of the 10-day Ganpati festival. - Krishna Janmashtami (Krishna 8) — Birth of Lord Krishna. - Onam (mid-month, fixed by Thiruvonam nakshatra) — Kerala's harvest festival. - Anant Chaturdashi (Shukla 14) — Conclusion of Ganpati festival; 14-knot thread tied for protection. - Pitru Paksha (Krishna pratipada to amavasya, last 16 days) — Daily ancestral offerings.
Theme: birth of deities, the year's first harvest, ancestral remembrance.
✦ Ashvin (September–October)
The autumn equinox month. Pitru Paksha closes; Sharad Navratri opens.
Major observances: - Pitru Paksha amavasya / Mahalaya (Krishna Amavasya) — Final ancestral rites. - Sharad Navratri (Shukla 1–9) — Nine-night Devi worship. - Vijayadashami / Dussehra (Shukla 10) — Victory of Rama over Ravana, and Durga's victory over Mahishasura.
Theme: balance, the year's pivot point, victory of the divine over the demonic.
✦ Kartika (October–November)
The festival of lights month. The most-celebrated month of the calendar in much of India.
Major observances: - Karva Chauth (Krishna 4) — Married women's vrat for husband's longevity. - Dhanteras (Krishna 13) — Worship of Dhanvantari and household wealth. - Diwali / Lakshmi Puja (Krishna Amavasya) — Festival of lights; worship of Lakshmi. - Govardhan Puja (Shukla 1) — Krishna's lifting of Mount Govardhan. - Bhai Dooj (Shukla 2) — Sister-brother festival. - Devuthani Ekadashi (Shukla 11) — Vishnu awakens from cosmic sleep; Chaturmas ends; weddings resume. - Tulsi Vivah (Shukla 12) — Marriage of Tulsi and Vishnu. - Kartika Purnima / Dev Diwali — Festival of lights of the gods at Varanasi.
Theme: light, abundance, the resumption of activity after the rains.
✦ Margashirsha (November–December)
Krishna calls Margashirsha "the best of months" in the Bhagavad Gita. Tradition associates it with intense devotion.
Major observances: - Vivah Panchami (Shukla 5) — Marriage of Sita and Rama (Mithila tradition). - Geeta Jayanti (Shukla 11) — Anniversary of the Bhagavad Gita's recitation. - Dattatreya Jayanti (Purnima)
Theme: deep devotion, the inwardness of the cool months.
✦ Pausha (December–January)
The coldest month. Activities shift inward — towards study, austerity, and devotion to Surya.
Major observances: - Pausha Purnima — Auspicious for Surya worship; Magh Mela begins at Prayagraj. - Makar Sankranti / Pongal (around January 14) — Sun enters Capricorn; Uttarayana begins; harvest festival across India.
Theme: the Sun's northward turn, the inner heart of winter.
✦ Magha (January–February)
Magh Mela peaks; Vasant Panchami announces the spring's arrival.
Major observances: - Mauni Amavasya — Day of silence; mass bathing at Prayagraj. - Vasant Panchami / Saraswati Puja (Shukla 5) — Spring announcement; worship of Saraswati; auspicious for beginning education and new books. - Bhishma Ashtami (Shukla 8) — Bhishma's passage on Uttarayan. - Magha Purnima — Final bath at Magh Mela.
Theme: spring's first announcement, learning, ancestral merit.
✦ Phalguna (February–March)
The year closes with the loudest festival of all — Holi. The full moon of Phalguna marks the year's symbolic burning of the old.
Major observances: - Maha Shivratri (Krishna 14) — The "great night of Shiva"; all-night vigil and worship. - Holashtak (Shukla 8 onward) — Eight days before Holi when no auspicious work is undertaken. - Holika Dahan / Chhoti Holi (Phalguna Purnima) — Bonfire commemorating the burning of Holika. - Holi / Dhuleti (Chaitra Krishna Pratipada) — The festival of colours.
Theme: the year's symbolic burning and renewal, the loudest celebration before another Chaitra opens the cycle.
✦ A Final Note on Regional Variation
This overview follows the most widespread pan-Indian convention. Regional traditions overlay important local festivals: Onam (Kerala) anchors Bhadrapada there; Pongal (Tamil Nadu) replaces Makar Sankranti in importance; Durga Puja (Bengal) is the dominant autumn festival in eastern India, displacing Sharad Navratri's emphasis. Many festivals also vary by ±1 day across regions due to differences in tithi-determination conventions (sunrise-based vs. midnight-based; Amanta vs. Purnimanta). When in doubt, the local panchang of the family's native region is the authoritative reference.