Pharma & FMCG ERP

The billing & GST engine your counter actually deserves.

Offline-first, encrypted, built for Indian trade. Bill without the internet, file GSTR-1 from inside the app, track batch and expiry without plugins — from ₹5,000 a year, everything included.

Book a free demo Try free — 15 days

No credit card. No installation fee. No per-module extras.

Windows macOS Android & iOS

Sale Bill — Rajesh Medical Store

Items

Dolo 650 × 10 stripsBatch DL2419 · Exp 03/27₹92.50

Azithral 500 × 3Batch AZ1821 · Exp 11/26₹74.00

Pan-D × 30Batch PD0324 · Exp 07/27₹112.80

Total (excl. GST) ₹279.30

GST 12% — IRN ready ✓ e-Invoice

✓ GSTR-1 captured ✓ Batch tracked ✓ Stock updated

Why Zentro

Three things the old software never solved.

Your data, on your disk

Encrypted with AES-256-GCM, backed up every 4 hours, exportable any time — your books are always in your control.

GST compliance, built in

GSTR-1 filed directly from the billing screen — not exported, not copy-pasted. GSTR-2B reconciled automatically. e-Invoice and e-Way Bill generated at the bill.

One price, everything included

No licence fee plus AMC plus e-invoice module plus multi-branch add-on. Pick a plan — ₹5,000, ₹9,000, or ₹25,000 a year — and that's it.

The product

Billing, GST, accounts — in one place that knows pharma.

Every piece was designed for the speed and compliance requirements of Indian pharma and FMCG distribution — not adapted from generic inventory software.

Billing & Sales

Bill at counter speed. Convert challans in one click.

Multi-series sale bills, delivery challans, sale orders and returns — all keyboard-driven for a counter that can't slow down. Challans convert to bills with a single keystroke. Party-wise pricing, multi-UOM (box / strip / piece), and WhatsApp sharing built in.

Retail Rx billing — doctors, patients, Schedule H/H1 compliance auto-handled
Loyalty points — applied at billing, tracked per customer
Print designer — thermal or A4/A5, your columns, your layout
Van-sales ready — billing that works offline, syncs when back online

Sale Bill — SB/2025-26/00847

GST & Compliance

GSTR-1 filed from the app — not from the portal.

The GST filing workflow lives inside Zentro — not as a separate module, not as a JSON export. GSTR-2B is auto-fetched and reconciled with fuzzy matching. e-Invoice IRN and e-Way Bill generate at the bill. TCS and TDS are computed as you go.

GSTR-1, 3B & 9 — filed via API, never leave the app
GSTR-2B reconciliation — fuzzy-matches even when bill numbers differ
e-Invoice IRN — generated instantly for GSP-eligible bills
TCS 206C(1H) & TDS 194Q — computed, reported, Form 27D included

GST Overview — Oct 2025

Banking & Reconciliation

Your bank statement, matched against your ledger automatically.

Upload your bank statement — Zentro matches each line against your receipts, payments and vouchers, flags the gaps, and lets you resolve them without scrolling through a thousand rows by hand.

Bank reconciliation — statement-vs-ledger, line by line
Mismatches flagged — discrepancies surface immediately
Outstanding management — party-wise, with age analysis
Bulk receipts & payments — PDC management included

Bank Reconciliation — HDFC Current A/c

Inventory & Pharma

Batch, expiry, Schedule H — pharma rules as first-class citizens.

Zentro was designed from the ground up for pharma stock, not adapted from generic inventory software. Batches carry expiry, shelf location, and Schedule classification. Near-expiry alerts fire before losses happen. The drug register writes itself.

Near-expiry alerts — configurable days before expiry date
Schedule H / H1 drug registers — maintained automatically at every sale
Supplier-wise expiry reports — see where your risk is concentrated
Single stock pool — across retail and distribution, no double counting

GSTR-2B Reconciliation — Sep 2025

Full capability list

If it's listed here, it's in the product.

See the Pricing page for which plan each feature lives in — but nothing is hidden behind a separate purchase.

Billing & Sales

Sale bills with custom series
Delivery challans → one-click conversion
Sale orders & return bills
Retail Rx billing with doctors & patients
Loyalty points for retail counters
Party-wise pricing & schemes

Purchase

Purchase bills & purchase orders
Purchase returns with debit notes
CSV import, per-supplier column mapping
Simulated preview before any commit

Inventory

Batch-wise stock with expiry tracking
Near-expiry alerts, configurable
Shelf / rack locations on bills
Stock statements & closing stock
Multi-godown transfers & batch holds

GST & Compliance

GSTR-1, 3B & 9 filed via API
GSTR-2B auto-fetch & reconciliation
e-Invoice IRN generation
e-Way Bill create, cancel & portal sync
TCS 206C(1H) & TDS 194Q with Form 27D
Schedule H / H1 drug registers

Accounting & Reports

Full accounting to Balance Sheet & P&L
Party ledgers & outstanding tracking
Bank reconciliation
Bulk receipts, payments & PDC
1000+ MIS reports, exportable to Excel
Day book & business insights dashboards

Platform

Windows & macOS desktop app
Companion mobile app — Android & iOS
Multi-firm, multi-FY, per-user permissions
AES-256 encrypted database
4-hourly backups — Zentro cloud or Google Drive
WhatsApp & email automation

Who it's for

Four counters. One product that adapts.

Zentro configures itself for your vertical at setup — you see the features your trade actually uses, not a generic list.

Vertical 01

Pharma Distributor

Challans, purchase invoice import, e-invoice IRN on every sale, party-wise margins — built for distributors who move stock before it's ever billed.

Vertical 02

Retail Chemist

Rx billing with doctors and patients, thermal printing, loyalty points, Schedule H/H1 registers — all without slowing the counter.

Vertical 03

Distribution + Retail

One stock pool across the counter and the godown. One P&L. No double entry between the two sides of your trade.

Vertical 04

FMCG Distributor

High-volume keyboard-driven billing, scheme structures, van-sales-ready outstanding tracking, GSTR-2B reconciliation with fuzzy matching.

See each vertical in detail →

Switching from legacy ERP

Your data carries across, nothing retyped.

Most pharma distributors come to Zentro from one of two or three well-known desktop ERPs. We read their data formats directly — parties, items, batches, outstanding balances, and transaction history cross in one guided import, with a full preview before anything is written.

Your old ERP stays exactly as it is. An untouched archive you can still open.

Open your old ERP folderPoint Zentro at the data directory — nothing is modified, nothing is deleted.

Preview the importSee every party, item, batch, and balance before you commit. Mismatch? Fix it here.

Confirm & runThe full history moves across in minutes. Start billing in Zentro the same day.

Pricing

Three plans. No surprises after you sign up.

Every plan includes the full product — billing, accounting, inventory, GST, reports. The difference is users, firms, and how much automation you want.

Built like your data is the business. Because it is.

AES-256 encrypted at rest

The entire database is encrypted on disk. A stolen drive gives an attacker nothing readable — the key never leaves your installation.

Automatic backups every 4 hours

Encrypted, compressed, to Zentro's cloud by default — or straight to your own Google Drive if you'd rather hold the copy yourself.

Per-user, per-module permissions

Counter operator sees billing. Accountant sees ledgers. Only the owner sees everything — enforced on the server, not just hidden in menus.

Cloud sync on your terms

Opt-in, per firm, isolated — your data goes into its own space. Your PC never holds cloud credentials.

Read the full security & ownership page →

Common questions

Before you try it.

Does it work without internet?

Yes, completely. Zentro is offline-first — billing, stock updates, accounting, and reports all run locally on your machine. Internet is only used for GST filing, e-invoice generation, cloud backups, and when you explicitly choose to sync. A power cut or ISP outage does not stop your counter.

What happens to my existing ERP data?

Zentro reads most common legacy desktop ERP formats — parties, items, batches, outstanding balances, and transaction history can be brought across in a single guided import. Your old ERP's data is read in place only — it stays exactly as it is, untouched, as a reference archive you can still open for as long as you want it.

How does GSTR-1 filing work exactly?

Every sale bill you raise in Zentro is already in the correct HSN-wise, GSTIN-wise, rate-wise structure for GSTR-1. When it's time to file, you review the return in a dashboard inside Zentro, make any corrections, and submit directly to the GST portal via API — no JSON export, no portal login needed. Available on Standard and Enterprise plans.

Can I use Zentro for both my distribution counter and retail shop?

Yes — the Combo vertical runs both under a single stock pool and a single P&L. Standard supports 2 firms; Enterprise is unlimited. If your distribution and retail businesses need separate books but share the same data installation, multi-firm handles it cleanly with no double entry.

Is there a mobile app?

Yes, a companion mobile app for Android and iOS — for viewing outstanding, approving orders, and checking stock on the go. The primary billing and accounting work runs on Windows and macOS desktop because that's where counter-speed keyboard workflows live.

What does the free trial include?

The full product — every feature on the Standard plan, for 15 days, with no credit card required. You can import your existing data, raise real bills, file test returns, and see every report before you pay anything.