Mangalvar vrat — Tuesday
The chief weekly observance. One meal after sunset, usually without salt; red clothes, red flowers, and a sindoor offering. Many keep it for twenty-one consecutive Tuesdays as a sankalp.
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Hanuman Jayanti, region by region
Hanuman Jayanti
Chaitra Purnima · March–April
His birth day in most of north India. Temples open before sunrise for abhishek; sindoor and oil are applied to the murti, the Chalisa is read aloud by thousands at once, and processions carry his banner through the streets.
Hanuman Jayanti (Tamil)
Margazhi Amavasya · December–January
Tamil Nadu observes his birth in the month of Margazhi, with vadamalai — a garland of vada — offered at Anjaneyar shrines.
Hanuman Jayanti (Telugu)
Vaishakha · May, 41-day deeksha
In Andhra and Telangana the deeksha begins on Chaitra Purnima and ends forty-one days later, devotees wearing orange and keeping a fast throughout.
Hanumath Jayanti (Kannada / Marathi)
Margashirsha & Chaitra
Karnataka marks it in Margashirsha; Maharashtra on Chaitra Purnima, with dawn kirtan and the reading of his birth story ending exactly at sunrise.
Because these follow the lunar calendar, the Gregorian date shifts each year — check a local panchang before planning a visit.
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The weekly days
Shanivar — Saturday
Kept especially by those under the influence of Shani. Hanuman is said to have freed Shani from Ravana's prison, and Shani promised never to trouble his devotees; mustard oil is the day's offering.
Sundar Kand paath
A household recitation of the fifth book of the Ramcharitmanas, often on a Tuesday evening, taking about three hours and ending with aarti and prasad shared with neighbours.
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Where he appears in other festivals
Ram Navami
Rama's birth day. Hanuman's image stands at the foot of every Rama shrine, and his Chalisa closes the day's kirtan.
Dussehra & Ramlila
The burning of Lanka is the showpiece of every Ramlila stage — a tail of lit cloth, and the crowd on its feet.
Diwali
He runs ahead of the returning chariot to tell Bharata that Rama is coming — the first lamp of Diwali is lit on that news.
Sindoor & oil abhishek
Chameli oil mixed with vermilion, applied from the feet upward. In big shrines it is done at dawn and again at the evening aarti.
Akhara traditions
Wrestling pits across north India open Tuesday practice with his name and a handful of earth pressed to the forehead.
Flag offering
Travellers tie a small saffron flag at ridge and pass shrines — a prayer for safe passage, left flying for whoever comes next.