Hidden DoorInvestigation Agency
Hidden DoorInvestigation Agency

Areas We Serve

Guwahati and the Northeast worked directly, every Indian state and union territory through resident associates, and international matters through vetted correspondent agencies. Where we cannot reach properly, we say so at intake rather than bill for the attempt.

01

Where we are based

Guwahati, Assam

Our operating base, and where every file is held, reviewed and written up. Same-day site attendance across the city; the intake line is answered within the hour.

  • Same-day attendance anywhere in the city
  • Intake answered within the hour, day or night
  • All case material held and reviewed here
02

Every state and union territory

All India

The Northeast is worked directly from Guwahati. The rest of the country runs through resident associates under our own file management and reporting standard, so the report reaches you in the same format wherever the work happened.

  • Deployment within 24–48 hours in the metros
  • Resident associates working to our reporting standard
  • Travel and expenses quoted before you commit
03

With stated exceptions

Worldwide

Cross-border work through vetted correspondent agencies, including members of the World Association of Detectives, briefed on the Indian evidentiary standard before they begin.

  • Correspondent agencies vetted before instruction
  • Findings reported against Indian rules of evidence
  • Cover in your jurisdiction confirmed at intake

Why Guwahati

The funnel for eight states.

Almost everything that matters in the Northeast — a company's registered office, a disputed property record, a transport consignment, a person trying not to be found — touches Kamrup Metropolitan at some point.

That concentration is why an agency based here can work the whole region without permanently staffing it. It also means we tell you plainly that we are based in Guwahati rather than implying a branch office in your city — which, in a category full of fake local addresses, is worth saying out loud.

Ask about your area

Response times

  • Guwahati — same-day site attendance; intake call within the hour.
  • Assam & the Northeast — on site within 24 hours; Arunachal needs permit planning.
  • Rest of India — 24–48 hours in the metros, planned deployment elsewhere.
  • International — cover confirmed at intake, before you commit.

Where we will not go

The exceptions, stated plainly.

Most agencies claim worldwide coverage and quietly subcontract the parts they cannot reach. We would rather tell you the limits before you pay for them.

Jurisdictions we decline

We do not accept investigative work in countries where Indian investigators cannot operate legally or safely — Pakistan, Bangladesh and North Korea among them. There is no lawful correspondent cover available to us in these jurisdictions, and anything obtained there would be neither admissible nor worth the risk to the people gathering it.

Assessed case by case

Active conflict zones, sanctioned territories and areas under travel advisory are considered individually. Where a matter involves someone already in one of these places, we can still help through crisis coordination with embassies and local authorities — which is a different service from investigation, and priced differently.

Next step

Not sure we cover your location?

Tell us the country or the city and the question you need answered. We will confirm whether we have vetted cover there before you commit to anything — and say so plainly if we do not.