Live in ProductionIndustrial SaaS · India

GBI

The Complete Management Platform for Gas Cylinder Distributors

A cloud-based SaaS that handles your entire operation — challan dispatch, GST invoicing, cylinder rent billing, stock tracking, and business reports. Built specifically for the Indian gas distribution industry.

LPG distributorsIndustrial gas suppliersMulti-branch operationsChallan management

21

Database Tables

6

Dev Phases

7

Built-in Reports

30

Day Free Trial

The Problem

Running a gas distribution business on spreadsheets and paper challans?

Challan errors & stock mismatches

Manual challan books mean stock figures are always off. Returns don't get logged, empties pile up unrecorded, and reconciliation at month-end takes days.

Rent calculation is a nightmare

Calculating cylinder rent day-by-day for dozens of customers takes hours every month — and still results in systematic undercharging.

No visibility into your business

No clear picture of outstanding receivables, which customers owe deposits, or how many cylinders are sitting idle at which godown.

What GBI Does

Everything your gas distribution business needs in one platform

Challan Management

Full challan lifecycle from dispatch to return

Create, confirm, and cancel delivery challans for full dispatch and empty returns. AUTO and MANUAL challan series supported. Stock updates atomically on confirmation — cancelled challans fully reverse all stock changes. Print challan PDFs directly from the system.

  • Dispatch challans for full cylinder delivery
  • Return challans for empty collection
  • AUTO & MANUAL numbering series
  • Atomic stock updates on confirmation
  • One-click challan PDF printing

Challan Management

Full challan lifecycle from dispatch to return

Dispatch challans for full cylinder delivery
Return challans for empty collection
AUTO & MANUAL numbering series
Atomic stock updates on confirmation
One-click challan PDF printing
GST-Compliant Invoicing

GST tax invoices generated in seconds

Generate invoices from one or multiple confirmed challans in a single action. GBI auto-detects intra-state (CGST + SGST) vs inter-state (IGST) based on your GST state code and the customer's state code. Print GST tax invoice PDFs with company header, bank details, and signature block.

  • Invoice from one or multiple challans
  • Auto CGST + SGST / IGST detection
  • State-code based tax routing
  • PDF invoices with full company header
  • Bank details & signature block included

GST-Compliant Invoicing

GST tax invoices generated in seconds

Invoice from one or multiple challans
Auto CGST + SGST / IGST detection
State-code based tax routing
PDF invoices with full company header
Bank details & signature block included
Cylinder Rent Billing

Accurate event-sourced rent calculation

Monthly rent billing computed day-by-day from actual cylinder movement history — not a snapshot. Every dispatch and return is tracked so customers are billed for exactly the days they held each cylinder. Bulk invoice generation per customer in one run.

  • Day-by-day rent from challan history
  • No snapshot-based approximations
  • Exact billing per cylinder, per day
  • Bulk invoice generation per customer
  • Handles partial-month holdings

Cylinder Rent Billing

Accurate event-sourced rent calculation

Day-by-day rent from challan history
No snapshot-based approximations
Exact billing per cylinder, per day
Bulk invoice generation per customer
Handles partial-month holdings
Stock & Cylinder Tracking

Real-time stock visibility across all godowns

Track full and empty cylinder counts per godown per product. SERIAL tracking for individual cylinders with test due date alerts. QTY tracking for aggregate counts. Customer holdings ledger maintained automatically on every confirmed challan.

  • Godown-wise full & empty counts
  • SERIAL tracking with test due alerts
  • QTY aggregate tracking
  • Auto-updated customer holdings ledger
  • QR code per cylinder

Stock & Cylinder Tracking

Real-time stock visibility across all godowns

Godown-wise full & empty counts
SERIAL tracking with test due alerts
QTY aggregate tracking
Auto-updated customer holdings ledger
QR code per cylinder
Reports & Exports

7 business reports — PDF and Excel

Stock Position, Customer Holdings with accrued rent, Receivables Aging (0–30, 31–60, 61–90, 90+ days), Party Ledger with running balance, Rent Ledger, Cylinder Movement History, and Test Due report. Every report exports as PDF or Excel in one click.

  • Stock Position report
  • Customer Holdings + accrued rent
  • Receivables Aging (4 buckets)
  • Party Ledger with running balance
  • Cylinder Movement History

Reports & Exports

7 business reports — PDF and Excel

Stock Position report
Customer Holdings + accrued rent
Receivables Aging (4 buckets)
Party Ledger with running balance
Cylinder Movement History
Multi-Tenant SaaS

Built to run as a production SaaS product

Full multi-tenant architecture with tenant isolation at every database query. 30-day free trial for new registrations. Platform admin panel to manage all tenants, view usage, extend trials, and upgrade plans. API key management for mobile app integration.

  • Tenant isolation at every DB query
  • 30-day free trial on sign-up
  • Platform admin panel for all tenants
  • Usage tracking & plan management
  • API key system for mobile apps

Multi-Tenant SaaS

Built to run as a production SaaS product

Tenant isolation at every DB query
30-day free trial on sign-up
Platform admin panel for all tenants
Usage tracking & plan management
API key system for mobile apps

Who Is It For?

Built for the Indian gas distribution industry

LPG Distributors

Domestic and commercial LPG cylinder distributors managing dealer networks and direct customers. Handle high-volume challan dispatch with GST invoicing built in.

Industrial Gas Suppliers

Oxygen, nitrogen, CO₂, and acetylene tracking across multiple godowns. SERIAL tracking keeps test due dates in check for each individual cylinder.

Multi-Branch Operations

Centralized billing and reporting across multiple locations. The multi-tenant architecture means every branch stays isolated while management gets the full picture.

QR Code per Cylinder
Test Due Date Alerts
Customer Holdings Ledger
Receivables Aging Report

Technologies & Architecture

Built on a modern, scalable stack

Backend

FastAPI (Python)PostgreSQLSQLAlchemy AsyncAlembicAPScheduler

PDF & Export

fpdf2openpyxl

Auth

JWT AuthAPI KeysMulti-tenant

Frontend

React 18ViteTailwind CSSTanStack QueryReact Router v6

Deployment

Railway (API)Vercel (UI)DockerAuto-migrations

Our Process

How we deploy GBI for your business

01

Discovery

We map your current challan flow, product types, godown structure, and billing process. Usually 1–2 days.

02

Setup

Platform configured with your company details, GST settings, products, and godowns. Existing data migrated.

03

Training

Your team trained on challan creation, invoicing, rent billing, and reports. Half-day session is usually enough.

04

Go Live

30-day supported onboarding with the Techgynt team available for any questions or adjustments.

FAQ

Frequently asked questions

Is GBI suitable for small distributors?

Yes. GBI works for distributors with a single godown and a handful of customers, right up to multi-branch operations. The platform scales with your business.

Does GBI generate GST-compliant tax invoices?

Yes. GBI auto-calculates CGST + SGST for intra-state supply and IGST for inter-state supply based on your GST state code and the customer's state code. Invoice PDFs include all required GST fields.

How is cylinder rent calculated?

GBI uses an event-sourced day-by-day calculation. It rebuilds the exact quantity held by each customer on each day of the billing period from challan history, then charges accordingly — the accurate method used in the industry.

Can we migrate our existing data?

Yes. Techgynt provides a data migration service for parties, products, opening stock, and historical challan data.

Is there a mobile app?

An Android app is on the roadmap. The platform already has API key management built in specifically for mobile app integration.

Is GBI hosted or on-premise?

GBI is fully cloud-hosted on Railway and Vercel. No server setup on your end — access from any browser on any device.

Ready to digitise your gas distribution operations?

Want GBI for your distribution business?

GBI is built, tested, and running in production. Contact Techgynt to get your business on the platform — from discovery to go-live in days, not months.