Jamai Shashti
Goddess Shashthi
When it falls
The date shifts because it tracks the moon, not the Gregorian calendar.
Calculated for India (IST) using precise Panchang astronomy. Dates can shift by a day at locations far to the east or west.
Why Jamai Shashti is observed
Jamai Shashti is built around a simple social bond: the relationship between a married daughter's family and her husband. In traditional Bengali households a son-in-law was an honoured guest rather than a member of the home, and this day set aside one occasion each year for the wife's parents to formally welcome him, feed him well, and bless him. Over time it became one of the warmest fixtures of the Bengali summer calendar.
The festival is named for Goddess Shashthi (Maa Shashthi), who in Bengal and the wider east is worshipped as the guardian of children and the continuity of the family line. The mother-in-law's fast and prayers are offered for the long life and welfare of her daughter's husband, and through him for the couple's marriage and children. So while the day looks like a celebration of the jamai, its deeper subject is the health and continuation of the family itself.
The date is fixed by the lunar calendar rather than the solar one: it always falls on the sixth tithi (Shashthi) of the bright fortnight (Shukla Paksha) of the month of Jyeshtha, in late spring or early summer. Because tithis are reckoned from the Moon, the corresponding English date shifts each year, which is why Jamai Shashti lands on Saturday, 20 June 2026 this time.
Rituals & observance
Jamai Shashti is more a family observance than a temple one, so most of it happens at home. The customs vary from household to household, but the common elements are a fast kept by the mother-in-law, a short Shashthi puja, and a large meal for the son-in-law. Typical observances include:
- The mother-in-law (and sometimes the daughter) keeps a fast through the morning, breaking it only after the puja and after the son-in-law has been served.
- A simple Shashthi puja is performed, often with a yellow thread, fruits, and a hand-fan, while the elder women pray for the well-being of the daughter and her husband.
- The son-in-law is welcomed with an aarti and a tilak, sometimes seated on a special place, and given new clothes or a gift as a token of honour.
- A festive vegetarian and fish-rich Bengali meal is prepared for him, usually featuring seasonal fruits like mango, litchi, and jackfruit alongside several courses and sweets.
- The couple, and especially the son-in-law, receive the blessings of the elders, after which the family eats together.
Regional variations
How this date is determined
Observed on the Shashthi tithi of Jyeshtha (Shukla paksha), reckoned by sunrise (udaya tithi). Should the tithi fall across two days, tradition keeps the earlier day (purva-viddha).
Dates are computed to astronomical precision (NASA/JPL ephemeris), in line with traditional panchang.
