Bihar Electricity Tariff 2026-27 — Slab Rates by DISCOM
Tariffs last updated: 27 August 2026
Calculate your provisional electricity bill for any of Bihar's 2 distribution companies — NBPDCL, SBPDCL — with a full slab-wise breakdown for 2026-27, covering Muzaffarpur, Darbhanga, Begusarai, Bhagalpur, Purnia, etc. and more.
Calculate your Bihar electricity bill
Slab rates, fixed charge, fuel surcharge and duty for 2026-27, applied to
your own units. Nothing you enter leaves your browser.
Domestic supply. The bracket in each option is the eligibility
limit — pick the one your connection actually falls under, because the rates differ
sharply between them. For commercial supply, time-of-day, solar export or arrears, the
full calculator carries every field.
Bihar electricity tariff (2026-27)
All 2 DISCOMs in Bihar bill on the same schedule, set by the
state regulator — so the rates below apply whichever company serves you.
LT Domestic (DS)
Supply type
Energy charge
Fixed charge
Duty & other
Kutir Jyoti (BPL)
Above 0units₹7.42/unit
₹20/mo
Electricity Duty6%
DS-I (Rural)
Above 0units₹7.42/unit
₹40/kW/mo
Electricity Duty6%
DS-II (Urban / demand based)
Above 0units₹7.42/unit
₹80/kW/mo
Electricity Duty6%
Who each rate applies to
Kutir Jyoti (BPL)
Below-poverty-line households under the Kutir Jyoti scheme. Flat ₹7.42/unit with a fixed charge of ₹20 per connection per month.
Rural non-domestic/commercial supply. Billed on kVA demand and kVAh energy: flat ₹7.79/kVAh, fixed ₹60/kVA/month. A poor power factor raises the bill directly.
NDS-II (contract load up to 0.5 kW)
Small non-domestic connections up to 0.5 kW contract load — kiosks, small shops. Flat ₹7.73/unit; fixed charge ₹150 per connection per month (cut from ₹200 in the FY 2026-27 order).
NDS-II (above 0.5 kW, up to 70 kW)
Non-domestic/commercial supply above 0.5 kW and up to 70 kW contract demand. Billed on kVA demand and kVAh energy: flat ₹7.73/kVAh, fixed ₹300/kVA/month.
Common Bihar bill calculations
Typical domestic examples for a 2 kW LT Domestic (DS) connection, computed with the same engine as the calculator. Use them as a quick sanity check; your actual bill changes with sub-category, arrears, FPPA, duty and billing-period length.
Complain in this order and keep the complaint number at every step. Skipping a step is the commonest reason a genuine billing complaint is returned unheard.
The CGRF order, or proof the forum missed its deadline
Two deadlines worth knowing. Under the central Electricity Rights of Consumers Rules a grievance should normally be decided within 30 days and in any case within 45. And if the paper you received is an assessment under Section 126 for unauthorised use rather than an ordinary bill, it does not go to the CGRF at all — it is appealed to the Appellate Authority under Section 127, usually within 30 days.
Bihar bills combine slab-wise energy charges, a fixed/demand charge per kW (or kVA), a fuel & power purchase adjustment (FPPA) and electricity duty. Use our free calculator to get an itemised provisional bill for your DISCOM.
Which electricity distribution company serves my area in Bihar?
Bihar is served by 2 DISCOMs: NBPDCL (North Bihar — Muzaffarpur, Darbhanga, Begusarai); SBPDCL (South Bihar — Patna, Gaya, Nalanda). Open your DISCOM above for its full tariff and an indicative bill.
What is the cheapest domestic electricity rate in Bihar?
The lowest domestic energy charge across Bihar DISCOMs starts at about ₹7.42 per unit (lowest slab), before fixed charges, FPPA and duty. Exact rates depend on your DISCOM and consumption slab.
Where do I complain about a wrong electricity bill in Bihar?
File first with your DISCOM — NBPDCL, SBPDCL — or on the 24×7 helpline 1912, and keep the complaint number. If it is not resolved, escalate to your DISCOM's Consumer Grievance Redressal Forum (CGRF) and then to the Electricity Ombudsman, both constituted under BERC regulations. A grievance should normally be decided within 30 days and in any case within 45.
What is the current electricity tariff year for Bihar?
The rates shown are for 2026-27 (latest available).