Siwan observes Ganesh Chaturthi on Monday, 14 September 2026, along with the rest of Bihar.
The idol is kept for one and a half, three, five, seven days or until Anant Chaturdashi — it is a family custom rather than a rule, and community mandapams usually keep it longest.
| Kept for | Immersion | |
|---|---|---|
| One and a half days | Tue, 15 September | |
| Three days | Thu, 17 September | |
| Five days | Sat, 19 September | |
| Seven days | Mon, 21 September | |
| Anant Chaturdashi | Wed, 23 September | The day most community mandapams immerse |
Many gram panchayats and municipalities set aside a pond or a marked stretch of tank for immersion. Ask at the panchayat office — it changes year to year, and a drinking-water tank or a farm pond is not an alternative.
A clay idol breaks down in water within hours. Plaster of Paris does not, and the paints carry heavy metals, so idols accumulate in tanks and rivers after immersion. Pollution control boards in most states now ask for clay for exactly this reason.
Immersion points get crowded and the bank is slippery after the monsoon. Children go into the water at these gatherings every year. Keep one person watching the water rather than the procession.
Thermocol, plastic sheeting, cloth and metal ornaments do not belong in the tank even when the idol itself is clay. Most organised immersion points now have a collection bin at the bank for them.
By population, Siwan ranks #4 of 257 villages in Kargahar mandal.
Source: Census of India 2011 (village PCA; mandal and district aggregates).
Siwan Biharയിലെ Rohtas ജില്ല, Kargahar ബ്ലോക്ക്ൽ 3,673 പേർ 536 കുടുംബങ്ങളിൽ (2011 സെൻസസ്) താമസിക്കുന്ന ഗ്രാമമാണ്, Kargahar ബ്ലോക്ക്ലെ 257 ഗ്രാമങ്ങളിൽ വലുപ്പത്തിൽ 4-ാമത്. സാക്ഷരത 71%, ബ്ലോക്ക് ശരാശരി 63% നേക്കാൾ 8 പോയിന്റ് കൂടുതൽ ലിംഗാനുപാതം 1,000 പുരുഷന്മാർക്ക് 928 സ്ത്രീകൾ. പിൻകോഡ് 821107, Kargahar പോസ്റ്റ് ഓഫീസിന് കീഴിൽ; LGD ഗ്രാമ കോഡ് 251629. പ്രസിഡന്റ് MEERA DEVI; ഗ്രാമം Mohiuddinnagar നിയമസഭാ മണ്ഡലത്തിലാണ്, എംഎൽഎ Rajesh Kumar Singh. 2026ൽ ജനസംഖ്യ ഏകദേശം 4,330, 2011നെക്കാൾ 18% കൂടുതൽ.
ഗ്രാമപഞ്ചായത്ത്: Shiwan →
Source: Census of India 2011, Village Directory. Facilities may have changed since.
Water supply timings, gram sabha dates, camps and drives — residents post them here and they expire on their own.
Looking for a different Siwan? The largest eight this name across India. All villages named Siwan →
Sources: Office of the Registrar General & Census Commissioner of India (Census 2011 + Population Projections 2011-2036) · International Institute for Population Sciences (NFHS-5) · Election Commission of India · data.gov.in (Jal Jeevan Mission, PMAY-G, SBM-G dashboards). Projections may differ from on-the-ground reality by ±20% for individual villages. An asterisk next to a sex-ratio value (—*) flags a Census 2011 figure outside the plausible range of 300–2000 ♀/1000♂; the underlying source row is suppressed pending review.
Centred on Kargahar mandal
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