Hindu Months हिंदू महीने

The Vikram Samvat year has 12 lunar months named after the nakshatra near which the full moon falls — Chitra gives Chaitra, Vishakha gives Vaishakha, and so on.

#	Month	हिंदी	Approx.	Key festivals in Rajasthan
1	Chaitra	चैत्र	Mar–Apr	Navsamvat, Gangaur, Ram Navami
2	Vaishakha	वैशाख	Apr–May	Aakha Teej, Buddha Purnima
3	Jyeshtha	ज्येष्ठ	May–Jun	Nirjala Ekadashi, Maharana Pratap Jayanti
4	Ashadha	आषाढ़	Jun–Jul	Devshayani Ekadashi, Guru Purnima
5	Shravana	श्रावण	Jul–Aug	Hariyali Teej, Raksha Bandhan
6	Bhadrapada	भाद्रपद	Aug–Sep	Kajari Teej, Janmashtami, Ganesh Chaturthi, Ramdevra
7	Ashvin	आश्विन	Sep–Oct	Shraddh, Navratri, Dussehra
8	Kartika	कार्तिक	Oct–Nov	Diwali, Pushkar Mela
9	Margashirsha	मार्गशीर्ष	Nov–Dec	Mokshada Ekadashi, Gita Jayanti
10	Pausha	पौष	Dec–Jan	Saphala Ekadashi, Paush Bada
11	Magha	माघ	Jan–Feb	Vasant Panchami, Desert Festival
12	Phalguna	फाल्गुन	Feb–Mar	Maha Shivaratri, Holi

Purnimanta vs Amanta

Rajasthan, like most of North India, uses Purnimanta months that end on Purnima. Gujarat, Maharashtra and the South use Amanta months ending on Amavasya. The Shukla paksha has the same name in both; only the Krishna paksha differs by a month.

Adhik Maas

Twelve lunar months are about 354 days, 11 days short of a solar year. When a lunar month passes with no Sun sign change (sankranti), it becomes an Adhik (extra) month — also called Purushottam or Mal Maas. Weddings and new beginnings are avoided in it.