ismailmo9090/SahakarSetu_Corpus

Sahakar Setu Corpus — Cooperative Governance & Legal Assistance Knowledge Base

Curated Hindi/Hinglish knowledge corpus powering Sahakar Setu (सहकार सेतु), the multilingual cooperative governance & legal assistance assistant built for Smart India Hackathon 2026, Problem Statement 26088 (Ministry of Cooperation / NCCT) by Team LexNova (Team ID 131559).

What's inside

File	Description	Size
corpus_passages.json	333 authored knowledge passages with source document, section reference and category	333 rows
eval_queries.json	13 Hinglish evaluation queries with expected source document	13 rows

Domains covered (6):

1. laws core — cooperative acts, by-laws, membership, voting, surplus distribution
2. PMFBY ops — crop insurance operations, premium, claims
3. PACS services — Primary Agricultural Credit Society services, KCC, loans
4. schemes ministry — PM-Kisan and other ministry schemes
5. grievance redressal — complaint filing, escalation to Registrar/Ombudsman
6. financial literacy — byaj, EMI, bachat, borrowing decisions

Passage format

{
  "id": 1,
  "source_doc": "laws core",
  "section_ref": "MSCS Act 2002 §…",
  "category": "laws",
  "passage_text": "…"
}

How the corpus is used (RAG pipeline)

The live assistant retrieves from this corpus with a deterministic BM25 search:

• Hinglish keyword expansion — member → sadasya/sadasyata, premium → kiraya/bhugtan (60+ mappings)
• Okapi BM25 — k1 = 1.2, b = 0.75, IDF = log(1 + (N − df + 0.5)/(df + 0.5))
• Phrase boosts — exact bigram +3.0, full-phrase +2.5
• Top-5 passages above score 0.2, deterministic tie-break by id
• Citation enforcement — every answer must cite [Source: doc, section]; otherwise the assistant declines with a verified "no answer" phrase

Evaluation result: 13/13 eval queries return the correct source document in the top-3 retrieved passages.

Live system

• IVR voice assistant: +1 346 998 6840 (Hindi, feature-phone, no internet needed)
• Server: https://sahakar-setu-server.onrender.com (health: /health)
• Docs: GitHub Pages — Sahakar Setu SIH 2026 documentation site

Citation

@misc{sahakarsetu2026,
  title     = {Sahakar Setu Corpus: Cooperative Governance \& Legal Assistance Knowledge Base},
  author    = {LexNova},
  year      = {2026},
  note      = {SIH 2026, PS 26088, Ministry of Cooperation / NCCT}
}