---
title: "Resolve a caller-declared Bihar domestic class"
method: POST
path: "/category-resolver"
tags: ["Calculation"]
---

# Resolve a caller-declared Bihar domestic class

`POST /category-resolver`

## Request

- Base URL: `https://powerexpertindia.com/v1`
- URL: `https://powerexpertindia.com/v1/category-resolver`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer

Maps a caller-supplied domestic classification to an exact verified Bihar tariff subcategory. The API does not determine lifeline, scheme or government eligibility.

## Request body

- CategoryResolverRequest
  - `state_code` 'BR', required
  - `consumer_type` 'domestic', required
  - `domestic_class` 'urban' | 'general' | 'rural' | 'lifeline', required
  - `connected_load` union
    - string
    - integer
  - `load_unit` string: Case-insensitive kW input; normalized to kw.
  - `effective_on` string, date
  - `release_id` 'BR-2026-27-VERIFIED-STRICT-BASE-V1', required
  - `verification_tier` 'verified_strict', required

## Response `200`

Verified category resolved.

- CategoryResolverResponse
  - `status` 'ok', required
  - `api_version` string, required
  - `request_id` string, required
  - `data` object, required
    - `resolution_type` 'verified_domestic_category_mapping', required
    - `coverage_status` 'production_verified', required
    - `resolution_status` 'resolved_verified', required
    - `confidence` 'exact', required
    - `state_code` 'BR', required
    - `input_classification` object, required
      - `consumer_type` 'domestic', required
      - `domestic_class` 'urban' | 'general' | 'rural' | 'lifeline', required
      - `connected_load` string, nullable, required
      - `load_unit` string, nullable, required
    - `resolved_category` object, required
      - `subcategory_code` 'BR_DS_II' | 'BR_DS_III' | 'BR_DS_I_RURAL' | 'BR_KUTIR_JYOTI', required
      - `category_label` string, required
      - `canonical_category_code` 'DOMESTIC_URBAN' | 'DOMESTIC_GENERAL' | 'DOMESTIC_RURAL' | 'DOMESTIC_LIFELINE', required
      - `layer` 'domestic', required
      - `supply_type` 'low_tension', required
      - `required_calculation_inputs` string[], required
      - `optional_calculation_inputs` string[], required
    - `evidence` object, required
      - `release_id` string, required
      - `financial_year` string, required
      - `effective_on` string, date, required
      - `verification_tier` 'verified_strict', required
      - `release_sha256` string, required
    - `disclosure` object, required
      - `classification_supplied_by_client` true, required
      - `eligibility_determined_by_api` false, required
      - `government_scheme_eligibility_verified` false, required
      - `automatic_category_guess_performed` false, required
      - `caller_must_confirm_consumer_classification` true, required
  - `meta` object, required
    - `release_id` string, required
    - `controller_version` string, required
    - `resolver_contract` 'PEI Bihar Domestic Category Resolver V1.0.0', required

## Other responses

- `401`: Authentication required or invalid.
- `403`: Scope or state access denied.
- `404`: State or consumer type not covered.
- `409`: Release mismatch or ambiguous resolution.
- `422`: Request validation failed.
- `429`: Rate or quota limit exceeded.

---

[API](https://skmtc.dev/powerexpertindia/apis/power-expert-india-verified-tariff-api.md) · [All operations](https://skmtc.dev/powerexpertindia/apis/power-expert-india-verified-tariff-api/llms.txt) · [OpenAPI document](https://skmtc.dev/powerexpertindia/apis/power-expert-india-verified-tariff-api/revisions/9a6f076ae01e?raw)