Royal Cabs runs sedans, SUVs and tempo travellers from Madurai Railway Junction. We built them a fast booking website that sends every enquiry straight to WhatsApp — and a private billing app that turns each trip into a GST-ready invoice and receipt.
By Dhanasekaran Thangavel · Updated
Client
Royal Cabs Madurai — cab, outstation and tour rentals
What we delivered
Booking website with its own content admin, plus a custom invoicing & billing web app
Billing app live
Since 26 June 2026
Website scope
27 indexable pages: 6 services, 8 tour routes, fleet, routes, blog, inquiry
Travellers searching "cab in Madurai" or "Madurai to Rameswaram taxi" decide fast, usually on a phone. Royal Cabs needed a website that answers the real questions — which vehicle, which route, how long — and makes booking a one-tap WhatsApp message.
Behind the counter, every trip ended in a bill. Some customers need a GST invoice, others do not. Numbers had to run in order per financial year, receipts had to match payments, and the owner wanted to see what was still unpaid without digging through paper.
So this became two builds that share one goal: less friction for the customer at the start of the trip, and less paperwork for the business at the end of it.
Counts from the production billing database. We only counted records — no customer details were read for this page.
100
Invoices issued
Created in the app between 26 June and 11 September 2026
85
GST invoices
With CGST/SGST split and SAC code; the rest are non-GST bills
92
Payment receipts
Each receipt numbered and linked to its invoice
41
Customers on file
Plus 21 drivers and 13 vehicle models kept in the app
Source: Royal Cabs production billing database, read 14 September 2026. Screenshots below come from a sandbox copy with made-up customers and dummy bank details.
The first two steps are the public website. The last two are the private billing app the Royal Cabs team uses after the trip.
Website · Service page
Each service — outstation, airport transfer, corporate, tempo traveller — has its own page explaining one-way versus round trip, what is included, and how pricing works. That is what people search for, so that is what ranks.
Website · Tour & inquiry
Eight tour pages cover the routes travellers ask about, with distance, travel time and the best season. The inquiry form opens WhatsApp with the trip already typed out — no data stored on a server, no form that goes unanswered.
Billing app · New invoice
Staff choose the invoice type, the customer and the vehicle from dropdowns. Picking a model fills in its registration. Line items, toll, discounts and tax are calculated as they type.
Billing app · Invoice & share
Every invoice gets the next number in sequence for the financial year, like RC/GST/FY26-27/0008. It can be downloaded as a PDF or shared to the customer on WhatsApp through a private link.
A public website that earns trust and bookings, and a private app that replaces the bill book.
Eight destination pages and a routes page answer distance, time and season questions travellers search before they call.
Every "Book Now" and the inquiry form open WhatsApp with the trip details filled in, so the team replies in the app they already use.
A password-protected admin lets the team update pages, services, tours, blog posts and images without calling a developer.
Separate sequences for GST invoices, non-GST invoices and both kinds of receipts, reset per financial year and issued inside a database transaction.
Monthly, custom-date and GST reports with CSV export, plus a dashboard of GST collected, non-GST billed and pending balance.
Owner and staff logins, rate-limited sign-in, and an audit log of sensitive actions like deleting an invoice.
The choices that made both builds simpler to own.
The risk
Web forms for cab bookings often land in an inbox nobody checks at 11 PM — and a traveller who hears nothing books someone else.
What we did
The inquiry form builds a ready-to-send WhatsApp message instead. The customer sees the chat open, and the team answers on the phone they already carry.
The risk
GST rules expect invoice numbers in an unbroken series. Two staff saving at the same moment can create duplicates or gaps.
What we did
Numbers come from a counter updated inside the same database transaction as the invoice, with separate series per invoice type and financial year.
The risk
Mistakes happen, but silently deleted bills are exactly what an accountant worries about.
What we did
Only the owner role can delete or reset invoices, resetting needs typing a confirmation word, and every such action is written to the audit log.
Dashboard and reports from the sandbox copy with demo data.
Your customer is on a phone
Big tap targets, a sticky WhatsApp button and short pages matter more than a fancy desktop hero.
Destination pages are your SEO
People search the trip, not the company. "Madurai to Rameswaram cab" is a page, not a line in a list.
Billing software pays off in months
Once invoices, receipts and reports live in one place, month-end and GST filing stop being a weekend job.
Two things: the public website royalcabsmadurai.com, with service, tour and route pages and WhatsApp booking, and a private invoicing and billing web app used by the Royal Cabs team for GST and non-GST invoices, receipts, quotations, drivers, expenses and reports.
Between 26 June and 11 September 2026 the team created 100 invoices in the app, 85 of them GST invoices, and recorded 92 payment receipts for 41 customers.
Yes. It creates GST invoices with CGST and SGST split and SAC code, and separate non-GST invoices. Each type has its own gapless number series per financial year, and invoices can be downloaded as PDF or shared on WhatsApp.
Because cab customers want a fast answer and the team lives on WhatsApp. The form writes the full trip request into a WhatsApp message, so nothing sits unread in an inbox and no customer data is stored on the website server.
Yes. The site has a password-protected admin for pages, services, tours, blog posts, media and settings.
It depends on the number of service and route pages, and whether you need extras like a content admin or billing software. See our website design cost guide for Madurai, or message us your requirements for a fixed quote.
Yes. We build custom web applications for local businesses — billing, quotations, attendance and alert systems — designed around how your team already works.
Written & verified by
Dhanasekaran ThangavelFounder & Director, Rank You Higher
Building and marketing websites for businesses in Madurai since 2016. Credentials
How we checked what is on this page
Share what you sell and how you invoice today. We will show you what to build first and what it will cost.
