Koili Semra observes Ganesh Chaturthi on Monday, 14 September 2026, along with the rest of Bihar.
The principal temple recorded for Rupauli mandal is Jagdamba Asthan. No temple of this dedication is on record within Koili Semra itself.
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 Septembertoday | |
| 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, Koili Semra ranks #2 of 55 villages in Rupauli mandal.
Source: Census of India 2011 (village PCA; mandal and district aggregates).
Koili Semra is a village of 22,208 people in 4,351 households (Census 2011) in Rupauli block, Purnia district, Bihar, the 2nd-largest of 55 villages in Rupauli block. Literacy is 40%, about the same as the block average of 40% and the sex ratio is 910 women per 1,000 men. The pincode is 854101, served by Ayodhyaganj Bazar post office; the LGD village code is 223269. The sarpanch is AMIN RAVIDAS, and the village votes in Mohiuddinnagar assembly constituency, represented by MLA Rajesh Kumar Singh. The population is estimated at 26,183 in 2026, up 18% since the 2011 Census.
Gram panchayat: Goriarpatti Srimatta →
| village | Population | Literacy | Distance |
|---|---|---|---|
| Koili Semra · this village | 22,208 | 40% | — |
| Goriar · Rupauli | 26,408 | 42% | — |
| Bairia · Rupauli | 3,481 | 49% | — |
| Harnaha · Rupauli | 2,369 | 35% | — |
| Bhartra Chakla · Rupauli | 0 | — | — |
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.
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 Rupauli mandal
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