Semra 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 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, Semra ranks #16 of 53 villages in Mairwa mandal.
Source: Census of India 2011 (village PCA; mandal and district aggregates).
Semra is a village of 2,023 people in 368 households (Census 2011) in Mairwa block, Siwan district, Bihar, the 16th-largest of 53 villages in Mairwa block. Literacy is 54%, 6 points below the block average of 60% and the sex ratio is 908 women per 1,000 men. It lies 170 km from the Siwan district centre, 0 km from Semra, the nearest town, 4 km from Karwandia railway station (straight-line distances). The pincode is 841243, served by Sahpur post office; the LGD village code is 232151. The nearest hospital or health centre is Narayan Medical College And Hospital, 3 km away. The sarpanch is Ram Pravesh Rajak, and the village votes in Sahebganj assembly constituency, represented by MLA Raju Kumar Singh. The population is estimated at 2,385 in 2026, up 18% since the 2011 Census.
Gram panchayat: Semra →
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.
1 mapped by OpenStreetMap contributors, nearest first. Government school lists (UDISE) will replace this when loaded.
Looking for a different Semra? The largest eight this name across India. All villages named Semra →
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.
Semra doesn't have its own precise centroid yet, so these places are nearby in the Mairwa mandal — sorted by distance from the village's approximate centre. Claim the village to add precise locations.
Place data sourced from © OpenStreetMap contributors (ODbL). Verified entries are confirmed by the Gram Panchayat. See something wrong? Suggest an edit.
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