India-wide remote studio · websites · apps · Windows software

Custom software for Indian businesses — websites, apps and Windows tools.

Brusain Developers is the studio of Gandharv Kumar Jha. We design and build websites, mobile apps and Windows desktop software to order. One booking starts the job. Featured commercial product: a custom invoice generator in your company’s name. Ready-made tools: Advocate PDF Solution and GKJ_Coder.

Book a build — ₹5,000 Invoice generator About the studio

The ₹5,000 is a booking, not the full project fee. Remaining scope is quoted after the brief. Refund Policy.

Brusain Developers studio: websites, mobile apps and desktop software

Featured product: Invoice generator for your company

We build a Windows invoice app in your legal name — tax invoice or bill of supply, CIN / LLPIN / PAN / GSTIN as applicable, your logo and a licensed installer for your staff PCs.

Book this product — ₹5,000 Full product page

Sample branded invoice generator: Aarohi Textiles Private Limited tax invoice

Also shipping: Brusain Advocate PDF Solution

Windows 10 / 11 desktop PDF suite for advocates — merge, Hindi OCR, bookmarks, sign and e-file on the PC. 7-day trial, then 1 / 2 / 3 year keys. Enterprises can order a customised name on the app.

PDF product page PDF pricing

Brusain Advocate PDF Solution dashboard

Also shipping: GKJ_Coder — one-terminal MCP

One CLI that runs a six-stage MCP orchestra (spec, code, UI, prototype, debug, AMD audit) instead of five separate AI terminals. Trial is 1,000,000 tokens (1000k), then the same 1 / 2 / 3 year prices as Advocate PDF. Windows 10 / 11, Python 3.10+.

GKJ_Coder product GKJ_Coder pricing

GKJ_Coder one-terminal MCP cover

What you can book

Websites

Marketing sites, product pages, booking and payment flows. HTTPS on your domain.

Mobile apps

Android / iOS style apps for operations, catalogues or field teams. Scope agreed after booking.

Windows desktop

Offline-first tools like our PDF suite. Installers, licenses, enterprise naming.

Digital invitations

Wedding, birthday, engagement and other digital invites from ₹999 booking. Names, date, venue and your style.

See build services Windows & mobile themes Digital invites ₹999

How booking works

Choose website, mobile app, Windows software, Windows theme, mobile theme, digital invitation, or enterprise PDF branding.
Pay the booking on Razorpay: ₹5,000 on developer orders, or ₹999 on themes and digital invitations.
Email the brief (Mail app, Gmail or Outlook from the booking page). We confirm remaining fee and timeline.
We build and hand over as agreed.

The booking is not the full project price. It is applied to the invoice. Remaining fee and timeline are confirmed after the brief. Refunds follow the Refund Policy. PDF and GKJ_Coder retail keys are licensed products with no refund once purchased.

Book a build — ₹5,000 Ask a question