Software development for Mumbai businesses
A few hours up the coast, and already working for a Mumbai manufacturer.
Acasa Labs is a software development company in Surat, a few hours from Mumbai by train. We build web apps, mobile apps, websites, and AI for Mumbai businesses, and we built the B2B catalogue, CMS, and enquiry automation for Siona Jewels, a Mumbai fine jewellery manufacturer selling to retailers in four countries.
The problem
Mumbai moves fast, and good developers are spoken for.
Mumbai has India's stock exchanges, a large share of its jewellery trade, and thousands of manufacturers, distributors, and financial firms that need software built properly. The city's agencies are busy and priced for the city. Freelancers cost less but rarely stay for year two. What most Mumbai businesses want is a team that ships, picks up the phone, and is close enough to be in the room when it matters.
What we build
- 01
B2B catalogues for manufacturers
A page for every product with the specs buyers ask for first, and enquiries that land with sales, as we built for Siona Jewels.
- 02
Tools for finance and trading teams
Dashboards, data pipelines, and internal tools for teams who need numbers fast and right, from the people behind a low-latency options platform.
- 03
Apps for customers and field staff
iOS and Android apps from one codebase, for your customers, your sales team, or your delivery staff.
- 04
AI on your documents
Answers from your own contracts, policies, and reports, each with the page it came from.
From production
Work for Mumbai, and for the businesses Mumbai runs on.
A catalogue buyers can quote
Siona JewelsEvery Siona Jewels design shows metal, stones, weights, MOQ, and lead time, so a retailer abroad can shortlist from a phone before speaking to anyone in Mumbai.
Built to be found
Siona JewelsSiona's site has buyer guides on karats, diamond reports, lab-grown stones, and shipping, structured data on every page, and a robots.txt that welcomes AI crawlers by name.
Options trading, measured in microseconds
Options trading platformFor a client trading index options on an Indian exchange, market-data decode runs at 2.5 µs at the median and 8 µs at p99, measured in tape replay, with risk checks before every order.
A dashboard that cannot hurt trading
Options trading platformMarket state reaches the dashboard through Redis and a WebSocket gateway, throttled per instrument. If the gateway dies, trading does not notice.
Honest trade-offs
Why a team from Surat, and when to stay in Mumbai
Surat is close enough for a kickoff at your office or a day on your factory floor, and we already work for a Mumbai manufacturer. Day to day we work remotely, with a weekly call and written updates. If you need developers in your office every day, or someone at a client meeting in BKC by noon, hire in Mumbai.
What we reach for
- Next.js
- Payload CMS
- Expo, React Native
- FastAPI
- Postgres
- Redis
- DuckDB, Polars
Proof
Shipped, not pitched.
01Client work
Siona Jewels
A jewellery manufacturer's catalogue that buyers find on Google and in ChatGPT, and that turns a design number into a lead.
Siona Jewels is a fine jewellery manufacturer in Mumbai selling to retailers and private-label brands in India, the US, Canada, and the UAE. We built their B2B catalogue site, the CMS behind it, the email automation that routes every enquiry to sales, and the search and AI-answer setup that gets them found.
Web · CMS admin
02Client work
Options trading platform
Microsecond market-data handling for index options, with risk checks that never sleep.
A private trading platform for index options on an Indian exchange: tick capture, research and backtesting, paper and live execution, and a control dashboard. Built for a client's internal use; details are anonymized.
Trading engine · Realtime gateway · Web dashboard
03Our product
Kraftr
One flat-lay photo becomes catalog-ready 4K on-model imagery.
An AI catalog studio for fashion and jewelry brands. Upload one flat-lay or hanger shot per SKU and get on-model imagery at up to 4K, in ten aspect ratios, sized for Amazon, Myntra, Flipkart, and Shopify.
Web · iOS · Android
Questions
Mumbai questions we get asked.
How far is Surat from Mumbai?
About 280 km up the coast. It is a few hours by train, which makes a meeting at your office a day trip.
Have you worked with Mumbai businesses?
Yes. Siona Jewels, a fine jewellery manufacturer in Mumbai, is our client. We built its catalogue site, the CMS, the enquiry emails to sales, and the search and AI-answer setup.
Do you build for jewellery and diamond businesses?
Yes. Siona Jewels is one, and Kraftr, our own product, makes on-model catalogue images for fashion and jewellery brands. Our jewellery page covers both.
Can you build for finance and trading firms?
Yes. We built a private options trading platform for a client: tick capture, research and backtesting, paper and live execution, and a control dashboard. The client stays confidential; the engineering is on our work page.
Can you meet us in person?
Yes, for the meetings that matter, such as a kickoff or a working session with your team. We come to you for the kickoff and whenever being in the room helps.
Can we talk in Gujarati or Hindi?
Yes. We speak Gujarati, Hindi, and English, so meetings, requirements, and staff training can happen in whichever language your team is most comfortable in. The software itself can be in any of them too.
Software development for Mumbai businesses
In Mumbai? We are a train ride away.
Thirty minutes on what you need built, and a meeting at your office if it helps. You leave with a written plan: scope, timeline, and a number.
No pitch deck. You own the code from day one.
contact@acasalabs.com