Envirya
Envirya Projects Pvt. Ltd. — Est. 2019

Trust that is engineered, not assumed.

Envirya builds across two verticals: protected environments that defeat espionage and electromagnetic attack, and AI-enabled digital health infrastructure built on consent, verifiable records and clinician review. Conceived, engineered and made in India.

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Incubated · Partnered · Recognised · Certified
Incubated atStartup Incubation and Innovation Centre, IIT Kanpur
In collaboration withTelecommunications Consultants India Limited (TCIL)
Partnered withNational Institute of Technology, Rourkela
Recognised byDPIIT-recognised startup — Startup India
CertifiedMSME ZED Bronze certification — Zero Defect Zero Effect
Company Overview

A strategic defence
and AI company.

Founded in July 2019, incubated at IIT Kanpur and allied with NIT Rourkela — a comprehensive hub for strategic defence and anti-espionage systems, developing protection technology in India, for India.

Envirya, with its principal partners, delivers turnkey solutions across strategic defence: CBRN defence, EMP/IEMI/TEMPEST hardening, anti-espionage environments, and both active and passive acoustic isolation.

The proprietary acoustic masking technology obscures room-generated sound so that it cannot be reconstructed from outside — and Air Quality Management applies the same discipline to the environment within, pairing a software dashboard with hardware sensors, controllers and actuators under AI control.

That engineering discipline now runs across two verticals: protected environments for defence and critical infrastructure, and AI-enabled digital health infrastructure built on consent, verifiable records and clinician review.

Comprehensive Safety & Reliability
  • Strategic defence — CBRN defence, EMP/IEMI/TEMPEST hardening, anti-espionage
  • Acoustic isolation — passive multi-layer isolation and active AI-driven masking
  • Air quality management — dashboard, sensors, controllers and actuators, AI-governed
  • Critical infrastructure — VIP bunkers, operations rooms, silos, communication shelters, data centres
  • Digital health — consent-driven records, document AI and clinician-reviewed decision support
01 — Capabilities

Two verticals.
One engineering discipline.

Protected environments for defence and critical infrastructure, and trusted digital infrastructure for healthcare — designed, engineered and executed under one roof with specialist product partners.
Vertical 01

Healthcare

An AI-enabled digital health ecosystem — consent-driven, interoperable and clinician-reviewed. Built to make health information trusted, usable and actionable at the point of care, without replacing the systems a facility already runs.
/ Wallet

Envirya Wallet

The cryptographic trust layer under health credentials, records and consent artefacts — PKI-signed and QR-verifiable online or offline, with tamper-evident audit logs and revocation that propagates in seconds.

/ En-Xtract

Clinical Document AI

A ten-step pipeline from paper bundle to FHIR-ready record: image enhancement, printed and handwritten OCR, medical entity extraction, patient matching and confidence scoring — low-confidence fields route to human review before entering the record.

/ Copilot

Clinical AI Copilot

Drafts consultation briefs, clinical notes, referrals and discharge summaries, with a citation to the exact source document behind every line. Diagnosis, prescription and sign-off remain with the clinician.

/ Records

Longitudinal Health Record

One consented, portable timeline per citizen — admissions, diagnoses, prescriptions, labs, imaging, allergies and vaccinations — built on ABDM registries (ABHA, HPR, HFR) and FHIR-style standards, with time-bound sharing and one-tap revoke.

/ Imaging

Diagnostic AI Triage

Urgency scoring and region localisation that orders the reporting queue so likely-urgent studies rise to the top. The radiologist reads the film, revises and signs — validated on local population data against radiologist ground truth, not vendor benchmarks.

/ Analytics

Operational & Population Analytics

Bed, queue and medicine-demand forecasting for facilities; aggregated, de-identified surveillance and capacity dashboards for public-health authorities. Identified clinical records and population analytics never mix.

AI-assisted, human-reviewed throughout — Envirya does not diagnose or prescribe. Healthcare vertical at proposal and pilot stage; specifications, clinical claims and regulatory classification to be validated before deployment.

Vertical 02

Defence

Turnkey design, engineering, manufacturing and execution for niche and confidential programmes — delivered under one roof with specialist product partners.
FLAGSHIP
/ Silent Room®

Anti-Espionage Enclosure

EM / acoustic / TEMPEST shielded environments for classified, high-sensitivity decision-making.

/ CBRN

CBRN Defence Shelters

Blast-proof, gas-tight hardened infrastructure — VIP bunkers, operations rooms, silos and communication shelters with automated decontamination. Protection against chemical and biological agents, radiological fallout, toxic industrial releases and nuclear weapon effects.

↓ CBRN Threat Primer (PDF)
/ Hardening

EMP / IEMI / TEMPEST

Retrofit and new-build protection of critical assets: grids, data centres, communications and command infrastructure.

/ Data

Data-Line Filters

The world's first commercially available EMP/IEMI data-line filter — fibre-optic galvanic isolation in a two-box Faraday architecture — paired with the TEMPEST Data Filter, which adds hardware AES-256 encryption behind the same shield.

/ CBR

Silent-Threat Readiness

Unified detection and response framework against covert chemical, biological and radiological incidents in high-footfall public spaces.

/ AQMS

Auto Air Quality

A software dashboard driving hardware sensors, controllers and actuators under AI control — monitoring and correcting O₂, CO₂, O₃, TVOC, NOx, SOx, PM2.5/10, radon, temperature and humidity in real time.

Vertical Deep-Dive — Healthcare

Consent at the centre.
A clinician on every decision.

Four workstreams on one consented thread: verify the people, digitise the paper, give the citizen control of the record, and put AI on the paperwork — never on the diagnosis.
Credential verification: weeks of letters and files replaced by one QR scan giving an instant answer, with every professional and facility digitally signed
Credential verification. A professional registers once, the issuing authority checks the records, and the credential is issued digitally signed and tamper-evident. From then on it is verifiable by QR in seconds — online or offline — and a revocation reaches every verifier at once. Click to enlarge ⤢
En-Xtract pipeline: a paper mountain passes through scanning, print and handwriting recognition, sorting, extraction and confidence checking into one secure searchable record, with a human reviewing anything uncertain
En-Xtract document AI. Ten controlled steps from a scanned bundle to a standardised, FHIR-ready record — enhancement, printed and handwritten OCR, classification, medical-entity extraction, patient matching and confidence scoring. Fields below the confidence threshold never enter the record without human sign-off. Click to enlarge ⤢
A citizen's health record wallet on a phone showing lab report, prescription and X-ray with time-bound share and revoke controls, a QR card alternative for those without a smartphone, and explanations in the patient's own language
The citizen's record wallet. One consented longitudinal record the citizen actually controls — shared with a chosen clinician for a set window, revocable in one tap, with a complete log of who saw what and when. A QR card works where there is no smartphone, and explanations are given in the patient's own language. Click to enlarge ⤢
Chest X-ray triage: AI sorts studies into likely-urgent and routine queues while the radiologist reads every film at a workstation and digitally signs the final report
Diagnostic AI triage. Urgency scoring lifts likely-urgent studies to the top of the reporting queue. The radiologist still reads every film, revises or rejects the flag, and signs the report. The claim is operational — earlier attention for the patients who need it, not autonomous diagnosis. Click to enlarge ⤢
01 / 04

Interface concepts and workflow illustrations — final designs to be validated with users and clinical partners during the pilot.

02 — The Flagship

Now walls
won't have ears.

A precision-engineered, six-sided sealed enclosure built on the Faraday-cage principle — securing the physical, electromagnetic, acoustic and environmental envelope around your most sensitive conversations.
  • EMP / IEMI / TEMPEST — independently certified 10 kHz–18 GHz
  • Passive acoustic isolation — multi-layer, across all six surfaces
  • Active acoustic masking — AI-driven, defeats machine reconstruction
  • Real-time AQMS — O₂, CO₂, TVOC, PM, radon and more
  • Secure VC & data integration with user encryption devices
  • Any size, any shape — new-build or retrofit, through a standard doorway
Inside the Silent Room®Interior of the Silent Room
80–110 dB
EM attenuation across 10 kHz–18 GHz — independently certified (IEEE 299 · MIL-STD-188-125-1 · IEC 61000)
80 STC
Acoustic isolation — where the industry benchmark stops at 50; certified with NIT Rourkela
0 / 6
Teams breached it — India's first anti-espionage red-team hackathon, in the open (2023)
Demonstration — Interception vs Silence

What escapes
the room?

Every device leaks — electromagnetic emissions, acoustic vibration, RF chatter. Outside a shielded envelope, an adversary reconstructs the conversation. Inside a Silent Room®, there is nothing to intercept. Step across the wall.
Signal beyond the wall CAPTURED  +38 dB

Outside: speech, screen emanations and RF ride out on every conductive path — captured and reconstructed by a receiver parked nearby.

03 — Proprietary Technology

Engineered in-house.
Protected by patents.

Filed and in-filing patents cover E3 disconnection for EMP, the composite-panel Faraday architecture of the Silent Room®, and our NBC filter testing regime.
/ 01

Passive Acoustic Isolation

Multi-layer proprietary panels, specialised acoustic doors and crosstalk attenuators on all six sides of the room.

/ 02

Active Acoustic Masking

Proprietary AI algorithms distort room-generated audio so it cannot be reconstructed, even by modern AI speech-analysis tools.

/ 03

E3 HEMP/EMP Protector

High-voltage isolator for high-value assets, built on pulse-power and nanosecond electronics. Shock-mounted, pneumatic, remotely triggerable. Patent filed.

/ 04

MIL-Standard Validation

In-house pulse current injection (PCI) testing to MIL-standard point-of-entry requirements, with 1.2 kA peak injection capability.

/ 05

Faraday Architecture

Composite metallic panels integrated with proprietary materials form a completely sealed six-sided envelope — sized to fit and maximise host-building space.

/ 06

AI-Enabled BMS

Integrated conditional-access control over a state-of-the-art sensor network, centrally governed by an AI-enabled building-management system.

The Threat Spectrum

Six attack paths.
One sealed envelope.

A conversation leaks across the electromagnetic, acoustic and environmental spectrum at once — and off-the-shelf TEMPEST receivers are commercially available today. Explore each channel, and how the Silent Room® closes it.
/ 01
RF & EM Surveillance
Channel 01 — Radio Frequency

RF & EM Surveillance

The threatOrdinary electronics radiate. Equipment that looks inert can carry speech and data out of a room that looks perfectly sealed.
How we close itThe room is closed electromagnetically, in both directions. What is said and processed inside does not leave it in usable form.
ATTENUATION>80 dB · 10 kHz–18 GHz
/ 02
TEMPEST Emanations
Channel 02 — Compromising Emanations

TEMPEST Emanations

The threatEveryday equipment emits signatures that can be reconstructed from outside the room. The means to do it are commercially available.
How we close itCompromising emanations stay inside the envelope. The boundary is built and tested to give up nothing of what happens behind it.
ISOLATIONGalvanic · fibre-optic
/ 03
EMP / IEMI
Channel 03 — Electromagnetic Pulse

EMP / IEMI Attack

The threatA deliberate electromagnetic pulse can disable or destroy electronics in an instant. Such sources are documented, and not confined to states.
How we close itThe room is engineered to withstand a pulse event and carry on working through it. Continuity as well as protection.
SURGE SURVIVAL40 kA · MIL-STD-188-125-1
/ 04
Acoustic Leakage
Channel 04 — Acoustic

Acoustic Leakage

The threatSpeech carries through structure and air, and can be recovered at a distance — without anyone entering the building or touching a device.
How we close itSpeech is attenuated at the envelope. What is spoken inside does not survive the boundary in any intelligible form.
ATTENUATION80 dB · spoken range · ISO 11957
/ 05
AI Reconstruction
Channel 05 — AI Audio Recovery

AI Reconstruction

The threatMachine learning can rebuild speech from traces too faint or too broken for a human ear. Residue that was once harmless is now evidence.
How we close itRecovery depends on something surviving the boundary. On the outside of this room there is nothing for a model to work from.
RECONSTRUCTIONInfeasible
/ 06
Environmental
Channel 06 — Environmental

Environmental Attack

The threatEvery room has to breathe. An adversary who cannot get through the walls will go looking for whatever the room cannot do without.
How we close itEverything the room needs reaches it without opening the envelope. The seal holds, and the room stays fit to work in for as long as it is in use.
AIR PATHSealed · AQMS-monitored
Anatomy of Silence

Integrated protection,
not a stack of parts.

The Silent Room® is not a box but a set of engineered systems working as one. Shown here in schematic form only — numbered for reference, not for order — with composition, construction and arrangement held proprietary.
Illustration shows functional protection architecture. Detailed material composition and construction stack are proprietary.
/ 01

EMP / IEMI / TEMPEST Shielding

Closes the electromagnetic boundary in both directions. Emissions do not leave. Directed energy is held at the boundary.

/ 02

Acoustic Isolation

Speech stays inside the envelope. Nothing usable reaches the far side of it, by any path.

/ 03

Active Acoustic Management

Sound is managed as well as isolated. Nothing on the far side of the envelope resolves into speech.

/ 04

Environmental Management

Air quality is held to the same standard as the seal, and never traded against it. The room stays workable while occupied.

The Benchmark

Measured against the
SCIF — and past it.

The US SCIF is the global reference for a secure facility. The Silent Room® matches it where it is strong, and extends past it on every axis that matters for modern threats.
Domain
SCIF — US Standard
Silent Room®
Passive acoustics
Up to 50 STC
Up to 80 STC
Active acoustics
White / pink noise only
Proprietary adaptive masking
Electromagnetics
TEMPEST only
TEMPEST + IEMI + EMP · >80 dB · 10 kHz–18 GHz
Air quality
Typically temperature control only
Full AQMS — monitored, regulated, actuated
Build
Fixed, standardized construction
Custom size / shape · retrofit · relocatable
Availability
US & allies only
Commercially accessible · Made in India

Comparison per company technical documentation; SCIF characteristics as publicly documented for US facilities.

Component Deep-Dive — OC-DLF

Two boxes.
No conductive path.

The Opto-Converter Data Line Filter (OC-DLF) carries data across the shield boundary as light over fibre — so no conductor ever bridges the protected and unprotected zones. Absolute immunity to EMP and EMI, with inherent TEMPEST security.
Outer Unit
Outer Unit — The First Line of Defence · outside the facility
Inner Unit
Inner Unit — The Secure Interface · inside the facility
Opto-Converter Data Line Filter (OC-DLF) — Dual-Enclosure HEMP Data Protection System architecture, shielding, surge neutralization and all seven supported interface models
Dual-Enclosure HEMP Data Protection System — Outer Unit (unprotected zone) and Inner Unit (protected zone) connected via optical-fibre isolation. All seven supported interface models shown · MIL-STD-188-125-1 compliant design — entirely proprietary to Envirya. Click to enlarge ⤢
Build & Specification

Dual-Enclosure HEMP Data Protection System

Every element is Envirya's own design — the shielded enclosure, the opto-conversion stage that turns the signal into light, and the secure digital core that handles it at either end.

  • Two boxes, no conductive path — fibre-optic galvanic isolation across the shield
  • >80 dB shielding, 10 kHz–18 GHz · 3.0 mm steel shell, 6.0 mm gasket lid
Component Deep-Dive — TEMPEST Data Filter

Where the filter ends,
the cipher begins.

Deployed in conjunction with the Opto-Converter Data Line Filter, as one protected data path. Where the OC-DLF removes the conductor, the TEMPEST Data Filter assumes some emanation may always escape — and makes whatever escapes worthless. Together they form a definitive red/black boundary: hardened on the outside, encrypted at the core.
/ Layer 01

Hardened Physical Enclosure

A multi-shell, electromagnetically opaque enclosure delivering >80 dB of shielding effectiveness from 10 kHz to 18 GHz — a 3.0 mm mild-steel shell with the lid thickened to 6.0 mm so gasket compression stays uniform around the whole perimeter.

/ Layer 02

Secure Perimeter Penetrations

Every opening is a potential slot antenna, so none are left open. Data and power cross through waveguide-below-cutoff tubes and two-stage Pi-filters, and the red/black data path is optical — removing the conducted emanation route that copper cabling creates.

/ Layer 03

Isolated Compute Core

Keys and cryptographic operations are confined to a hardware-enforced Trusted Execution Environment. The general-purpose operating system handles I/O and application logic and never has access to plaintext keys — a boundary enforced by silicon, not by policy.

/ Layer 04

End-to-End Cryptography

A dedicated cryptographic co-processor performs AES-256-GCM off the main CPU, limiting side-channel leakage. A 128-bit authentication tag detects any tampering, and a hardware monotonic counter behind the nonce makes captured packets unreplayable.

/ Defence in Depth

Failure Is Survivable

The four layers are independent but reinforcing. Should residual emanation ever escape the enclosure, what leaves is ciphertext — strongly encrypted and useless to an adversary. No single layer is asked to be perfect.

/ Platform

Production-Grade Hardware

Built on an industrial-grade System-on-Module and carrier board rather than a laboratory rig — Gigabit Ethernet for the red and black data paths, CAN-FD and RS-232/RS-485, rated −40 °C to 85 °C.

Validation regime: TEMPEST/EMSEC pre-compliance scanning, MIL-STD-188-125-1 shielding-effectiveness and pulse-current-injection testing, MIL-STD-461 conducted and radiated emissions and susceptibility, and cryptographic verification for tag-forgery rejection, nonce monotonicity and side-channel resistance.

04 — Red-Team Validated
Zero breaches.
India's first anti-espionage hackathon, 22 October 2023. Teams from VIT, PEC Chandigarh, PES Bangalore and NIT Rourkela — plus an Army Signals group with their own state-of-the-art sweep scanners. Six teams, two challenges, zero signals.
Challenge 01 — Acoustics

Speech at 100 dB, uncaptured.

Capture speech generated at 100 dB inside the room — as loud as a nightclub. Nothing recovered by any team.

Challenge 02 — Electromagnetics

10 kHz–18 GHz, defeated.

Capture EM signals across 10 kHz–18 GHz, 15 minutes per team. Zero signals captured — including by the Army team.

The Control

The doors were then opened — and every team captured the signals freely, proving they had been there all along. The room was the only thing that had changed.

0 / 6teams
breached
0signals
captured
2challenges
Dignitaries inspecting surveillance equipment
Army team attempting the electromagnetic challenge
Participants at the Silent Room Hackathon
Team attempting the acoustic challenge

Witnessed by Shri Sanjeev Kumar (CMD, TCIL), Lt. Gen. Harpal Singh (former E-in-C, Indian Army), Dr. D. P. Jena (Acoustics, NIT Rourkela) and Cdr. Sanjay Singh (MD, ETS-Lindgren India). Covered by Financial Express, Business Standard, ThePrint/ANI and others.

Seen at the highest level

Showcased at DefExpo-24 to the three service chiefs, and demonstrated at IIT Kanpur to the Raksha Mantri — alongside the Director, IIT-K and the former Vice Chief of Naval Staff.

05 — Who We Serve

For those who cannot
afford to be overheard.

From forward command posts to corporate boardrooms — wherever a conversation is worth intercepting, it is worth protecting.
/ Defence

Armed Forces

Secure command networks, operations rooms and field-deployable protected environments across the command hierarchy.

/ Government

Government & Diplomatic

Secure deliberation rooms, crisis-coordination facilities and embassy communication environments.

/ Infrastructure

Critical Infrastructure

EMP-hardened power, telecom, banking and data-centre assets with certified data-line protection.

/ Corporate

Corporate Boardrooms

Anti-espionage environments for M&A, banking, energy, telecom and technology leadership.

06 — Leadership

The team behind
the silence.

Decades of combined expertise in the strategic domain, protected-infrastructure engineering and product delivery.
Raghu Rayala

Raghu Rayala

Managing Director

Leads programme delivery and execution across Envirya's protected-infrastructure projects.

Brig. Bishwajeet Ghosh

Brig. Bishwajeet Ghosh, SM, VSM (Retd)

Director

Decorated officer with a decade of experience in the strategic domain; leads defence engagement.

Kanishk Ghosh

Kanishk Ghosh

Co-Founder & CEO

Drives strategy, product and growth across Envirya's protected-infrastructure and AI verticals.

07 — In The Press

Covered by India's
leading business media.

The Silent Room® Hackathon drew national coverage across defence, business and technology press.
08 — Get In Touch

Visit the Silent Room®.
Judge it yourself.

Our technology-demonstration facility is open for guided visits, live demonstrations and technical evaluation by prospective clients. Location and access details are shared directly once a visit is confirmed.

Registered Office

New Delhi — 110029

contactus@envirya.in

Demonstration Facility

Visits are by prior appointment only. Location and access details are shared directly with verified visitors once a date is confirmed.

Request a visit via the form, or write to contactus@envirya.in.