Self-hosted team collaboration
Slack, but you own the servers and the data.
Brihat Communication System is a self-hosted messaging and collaboration platform built to Indian government security and accessibility standards from day one — no video calling, no foreign cloud, no vendor lock-in.

Why self-hosted matters here
Data stays on your infrastructure
Deployed via Docker Compose on your own PostgreSQL, Redis, and S3-compatible storage. No dependency on any Brihat-operated cloud service at runtime.
Every action is audited and verifiable
A full audit log with a cryptographically verifiable, tamper-evident hash chain — not just a list of events, but one where a modified record is detectable.
No dependency on a foreign cloud provider
Nothing about running the product depends on infrastructure outside your own control.
Messaging built for how departments actually work
Public and private channels, direct and group messages, threaded replies, @mentions, reactions, edit history, pinning, and full-text search across everything.

Documents and e-signatures, permissioned properly
Folder-based document management with granular per-folder and per-document permissions, version history, and in-app previews — plus e-signature requests with full status tracking across everyone who needs to sign.

Announcements with a real lifecycle
Draft, schedule, publish, archive or retract — with read receipts, comments, reactions, and priority flagging, so an org-wide notice doesn't just vanish into a channel.

Polls that fit how a decision actually gets made
Single-choice, multiple-choice, and ranked-choice voting, optionally anonymous, with comments and a closing timer.

Admin and audit, built in from the start
Five roles from Super Admin to Guest, a tamper-evident audit hash chain, storage usage, and white-label branding an organisation can set at runtime — no rebuild required.

English and Hindi, throughout
The entire interface — including every system and error message — is available in English and Hindi (हिन्दी), with the architecture built to extend to more Indic languages.
See more of the product





1
Deployed on your infrastructure
Docker Compose, your own database and storage.
2
Your team signs in, in English or Hindi
The full interface, bilingual by design.
3
Every action is logged and auditable
A tamper-evident record, not just a log file.
Questions
Does it support voice or video calling?
No — that's deliberate. Keeping calling out of scope keeps the security surface small and auditable.
What does "tamper-evident" actually mean?
Every audit entry is cryptographically chained to the one before it, so if a record is altered after the fact, the break in the chain is detectable.
Is it CERT-In empanelled or ISO certified?
It's architected toward CERT-In empanelment and GIGW 3.0 accessibility expectations — we don't claim a certification we don't independently hold.
What language does the interface support?
English and Hindi (हिन्दी) throughout, including system and error messages, with the architecture built to extend to more Indic languages.
How is this deployed?
Self-hosted via Docker Compose on your own PostgreSQL, Redis, and S3-compatible object storage, TLS-terminated behind your own reverse proxy.