Bihar Electricity Bill Calculator
(State DISCOM Tariff Tool)
Estimate your monthly electricity bill in Bihar using official tariff rates across domestic, commercial, industrial and agriculture connection categories.
Optional — a known flat subsidy/rebate to deduct from the total
Estimated Monthly Bill
Domestic Rural · Bihar⚡ 200 units this month · avg rate ₹8.34/unit
Har Ghar Bijli Scheme: 125 units are 100% free. If consumption is >125, flat ₹5.52/unit applies to ALL units consumed.
⚠️ Figures for Bihar have not been independently cross-checked against the official tariff order — treat this estimate as approximate and verify against your DISCOM's published tariff.
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Electricity Bill Calculator by State
Every Indian state and UT sets its own tariff order — pick yours below for a pre-selected calculator with that state's official DISCOM rates.
Electricity Tariff in Bihar
Bihar's electricity distribution utility which sets tariffs across 5 connection categories — domestic, commercial, industrial, agriculture and others — each with its own slab structure and electricity duty rate.
Domestic Tariff Slabs — Domestic Rural
| Slab (units) | Rate |
|---|---|
| 0 – 125 | ₹0 / unit |
| 126 – above | ₹7.42 / unit |
Billing type: Non-Telescopic · Meter rent: ₹25 · Electricity duty: 6% · FAC: ₹0.15/unit
⚠️ Figures for Bihar have not been independently cross-checked against the official tariff order — treat this as an approximate estimate.
How to Use This Calculator
- Step 1 — Connection Category: Bihar is pre-selected; choose Domestic, Commercial, Industrial, Agriculture or another category — each has its own slab structure and duty rate.
- Step 2 — Monthly Units: Enter the kWh figure from your last bill to see the slab-wise breakdown instantly.
- Step 3 — Fine-tune: For categories billed per kW of sanctioned load, enter your actual contracted load, or open "Customize Tariff & Charges" to match your exact bill.
Frequently Asked Questions
What are the domestic electricity tariff slabs in Bihar?
Under Domestic Rural, non-telescopic billing applies across 2 slabs, from ₹0/unit for the first 125 units up to ₹7.42/unit for the highest slab.
What is the electricity duty in Bihar?
For Domestic Rural in Bihar, electricity duty is charged at 6% of the energy charge. Other connection categories in the state can have a different duty rate — switch categories in the calculator above to see each one.
What is the difference between telescopic and non-telescopic electricity billing?
In telescopic (slab-wise progressive) billing, each unit is charged at the rate of the slab it falls into, so only the portion above a threshold is billed at the higher rate. In non-telescopic billing, crossing into a higher slab means the entire month's consumption is billed at that slab's rate, not just the excess.
Which DISCOM supplies electricity in Bihar?
Bihar's distribution utility sets the tariff rates used in this calculator — see the source link in the result panel for the official tariff order.
Tariff data compiled from Bihar's official DISCOM/regulator tariff order — verify against your own bill before making financial decisions.