Trade Secret Exposure
Kolkata’s trading houses and commodity firms handle pricing, supply chain and deal terms that are worth significant money to competitors — a single planted microphone can expose months of negotiation in minutes.
TSCM & Counter-Surveillance Specialists — Kolkata
MASS delivers certified bug sweeps services in Kolkata for trading houses, law firms, family businesses, HNIs and corporate executives. We detect hidden microphones, covert cameras, RF transmitters and GPS trackers — protecting your most sensitive conversations before information leaves the room.

Kolkata’s unique business landscape — centuries-old trading houses, established legal chambers, a dense cluster of financial firms and a growing IT corridor in Salt Lake Sector V and New Town — creates a high-value environment for covert surveillance. Legacy buildings with shared infrastructure, frequently renovated hotel rooms and multi-tenant office floors all present persistent concealment opportunities for anyone determined to listen in on private conversations.
MASS brings over 26 years of TSCM expertise to every bug sweeps assignment in Kolkata. Our inspections combine RF spectrum analysis, non-linear junction detection (NLJD), physical sweep methodology and thermal imaging to locate devices that basic consumer detectors cannot find — including dormant recorders, shielded transmitters and surveillance hardware embedded in everyday objects like power adapters, clocks and air purifiers.
Kolkata’s trading houses and commodity firms handle pricing, supply chain and deal terms that are worth significant money to competitors — a single planted microphone can expose months of negotiation in minutes.
Law chambers and arbitration rooms that are not regularly swept can unknowingly expose client strategy, settlement positions and privileged communications to opposing parties.
Disgruntled partners, departing employees or contracted vendors with temporary building access are the most common source of planted devices in Kolkata’s office environments.
Succession disputes, partnership disagreements and estate negotiations in HNI households are prime targets for covert audio surveillance by hostile family members or legal opponents.
We begin with a confidential, NDA-protected consultation to understand your location, recent access history, trigger events and whether the concern is audio, video, RF or vehicle-related. No details are shared externally at any stage.
Our team performs a comprehensive radio frequency sweep to identify active wireless transmitters, GSM audio bugs, Wi-Fi cameras, Bluetooth recorders and any device broadcasting a signal from within the inspected space.
Non-linear junction detectors locate concealed electronics even when switched off or not transmitting — covering walls, furniture, fixtures, installed electronics and all common concealment points within the space.
You receive a written findings report covering every device detected, risk vulnerabilities identified, and recommended security improvements — delivered exclusively to your authorised contact, with no third-party disclosure.

Full technical surveillance countermeasures sweep covering boardrooms, legal chambers, private offices and sensitive meeting spaces using professional TSCM-grade detection equipment.
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Locate covert microphones, digital recorders and pinhole cameras concealed in furniture, wall fixtures, electrical fittings, smoke detectors and everyday office accessories.
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Advanced spectrum analysis to identify live wireless transmitters, GSM bugs, rogue Wi-Fi devices and remote-activated surveillance equipment operating anywhere within the inspected space.
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A dedicated vehicle bug sweep inspects executive cars, SUVs and private vehicles for GPS trackers, hidden audio recorders and covert cameras — ensuring private conversations during travel remain secure.
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Protect trade secrets, boardroom strategy and partnership negotiations from insider threats, competitor-sponsored surveillance and external intelligence operatives targeting your Kolkata operations.
Learn MoreA senior partner at a Dalhousie-based commodity trading firm suspected a competitor was anticipating their pricing decisions ahead of major contract rounds. MASS was engaged to conduct a bug sweeps services inspection of the managing director’s cabin and two adjoining meeting rooms. Our NLJD sweep identified a commercially available audio recording device concealed inside a UPS unit that had been serviced by an external vendor three weeks earlier.
Outcome: The device was documented, removed and handed to the client’s legal team. The firm implemented MASS-recommended vendor access controls and scheduled quarterly TSCM inspections across all sensitive areas.
Discuss Your Situation
Kolkata carries a business culture unlike any other Indian city. The trading community that built much of the city’s commercial identity still dominates sectors like commodities, jute, textiles and logistics. Alongside this, a rapidly expanding IT corridor in Salt Lake Sector V and New Town has attracted MNC branch offices, fintech startups and back-office operations for global companies. Both environments — old economy and new — generate exactly the kind of sensitive conversations that make professional bug sweeps services in Kolkata a practical necessity rather than a precaution.
Legacy office buildings in Dalhousie and Camac Street are structurally complex, with false ceilings, shared electrical risers, older wiring and multi-tenant floors that have changed hands many times. Each renovation cycle introduces contractors with unsupervised access to sensitive spaces. Similarly, Park Street hotels hosting board meetings, investor dinners and VIP guests rotate housekeeping and maintenance staff regularly — creating access windows that are difficult to control. These are not hypothetical risks; they are the conditions our TSCM teams encounter on actual Kolkata assignments.
Kolkata is also home to some of India’s most active legal chambers, arbitration venues and high-court-adjacent law offices in the Camac Street and Park Circus areas. A bug sweeps services inspection of an arbitration room or partner cabin before a sensitive hearing is not just good security practice — in many situations it is the professional standard that clients now expect.
Every inspection begins with a confidential briefing where we establish the scope, history and concern. We then deploy a layered detection methodology: RF spectrum analysis identifies any device actively transmitting a signal; NLJD (non-linear junction detection) locates semiconductor junctions in electronics regardless of whether they are powered on — this is how we find the dormant recorders and scheduled-activation devices that evade standard RF sweeps. Physical inspection systematically covers furniture, power points, AV infrastructure, ceiling fixtures, smoke detectors and all installed electronics. Thermal imaging is used where thermal anomalies may indicate a concealed powered device.
For clients who require protection beyond their premises, MASS provides a dedicated vehicle bug sweep covering GPS trackers, hidden microphones and covert cameras across the full vehicle — undercarriage, interior panels, OBD port and infotainment unit. For senior executives flying into Kolkata by private aviation, an aircraft bug sweep covers the passenger cabin, luggage compartment and cockpit area to ensure in-flight conversations remain private. Both services are conducted discreetly and documented in the same confidential report format as our standard inspections.
The most effective sweeps are proactive. The ideal timing includes before a board meeting, M&A discussion, arbitration session or investor presentation; after any renovation work involving external contractors; following a suspected leak of confidential information; before a high-profile guest or VIP event at a hotel or private venue; and as part of a scheduled quarterly TSCM programme for high-risk environments. MASS has conducted bug sweeps services across offices in Dalhousie, legal chambers in Camac Street, luxury hotels on Park Street, private residences in Alipore and vehicle fleets serving corporate campuses in Salt Lake and Rajarhat. Every assignment is completed with no branded vehicles, restricted team communication and findings delivered only to the designated client contact.
We engaged MASS before a critical commodity contract negotiation in our Dalhousie boardroom. Their NLJD sweep found a recording device our own security team had completely missed. The entire process was handled with extraordinary discretion.
Our legal chambers required a sweep before a high-value arbitration. MASS arrived in an unmarked vehicle, completed the inspection after hours and delivered a clear written report before the next morning’s hearing. Exceptional professionalism.
We needed a VIP suite swept at short notice before a high-profile guest arrival. MASS responded within hours, conducted a thorough sweep and gave us written clearance. No fuss, no visibility issues — exactly what a hotel of our standard requires.
A professional bug sweeps service in Kolkata by MASS includes RF spectrum analysis, non-linear junction detection (NLJD), full physical inspection of furniture and fixtures, hidden camera scanning, GPS tracker detection and a confidential written findings report. The inspection scope is tailored to your specific location and concern.
Yes. We regularly inspect hotel rooms, VIP suites and temporary meeting venues in Park Street and surrounding areas, as well as legal chambers in Camac Street and Park Circus. Hotel inspections are conducted during guaranteed vacancy windows to ensure a complete and thorough sweep without exposure.
A single office cabin or hotel room typically takes two to four hours. Larger spaces — multi-room offices, trading floors, legal chambers or private residences — are scoped during a confidential pre-inspection consultation. We work after business hours when discretion or schedule demands it.
Yes. Our vehicle bug sweep covers the full vehicle — undercarriage, wheel arches, interior panels, OBD port and infotainment system — for GPS trackers, hidden audio recorders and covert cameras. This is especially recommended for executives who discuss sensitive matters during transit between Kolkata business districts.
Yes. MASS signs an NDA before every engagement. Our team uses unmarked vehicles, operates on restricted internal communication protocols and delivers findings exclusively to the designated client contact. Nothing is shared with third parties under any circumstances.
The best time is before a board meeting, legal hearing, M&A discussion, arbitration session or investor visit; after a renovation involving external vendors; following any suspected information leak; or as part of a scheduled quarterly TSCM programme. Proactive inspections consistently outperform reactive ones in protecting what matters most.

Speak directly with a MASS TSCM specialist — no automated systems, no call centres. Expert guidance within minutes, available 24x7.