How Many CCTV Cameras Do You Need? Ahmedabad Placement Guide

A shop puts up sixteen cameras and the owner feels well protected. Then a theft happens, the police ask for footage, and not one frame is clear enough to identify a face. The cameras saw everything and proved nothing. Sixteen cameras, zero usable evidence. This is the most common way money gets spent on CCTV and still buys nothing.

The number of cameras is the easy thing to sell. It is almost never the thing that decides whether your system works. A carefully placed six-camera setup will beat a randomly bolted twelve-camera one nearly every time.

So before you ask "how many cameras do I need?", ask the better question: what must each camera do, and where does it have to be to do it? Get that right and the count answers itself.

Coverage first, count second

Good CCTV isn't about blanketing a place in cameras. It's about geometry. You put a lens at the right angle, height and distance from the few spots that genuinely matter. Removing blind spots is a placement problem, not a quantity problem. Two cameras covering the entry and the cash counter properly are worth more than eight pointed at empty aisles and the backs of people's heads.

So plan a system by walking the premises and listing, in priority order, the jobs the cameras have to perform. For most shops, offices and factories in Ahmedabad, that priority order tends to look like this:

• Entry and exit doors. Angled to catch a clear face of everyone coming in and out. This is also the legal minimum (more on that below).
• Billing or cash counter. Positioned to see both hands and face, where disputes and pilferage usually happen.
• Main gate / vehicle entry. Specced to actually read a number plate, not just notice "a vehicle".
• Godown, stock room and inventory access points. Where stock quietly goes missing.
• Cash room, safe or server room. The high-value, low-traffic spots.
• Perimeter, loading bay and parking entry-exit. Especially for factories and GIDC units with large yards.
• Aisles and floor lanes. Useful, but genuinely last on the list.

Notice that camera count never appears in this list. You place for the jobs, then count what that takes. That's the whole idea behind how we plan CCTV for shops, offices and factories, and it's why the free survey comes before the quote, never after.

The question that decides everything: can it actually identify a face?

This is the single most useful idea in CCTV, and the one cheap quotes quietly ignore. A camera that sees a thief is useless if it can't capture a face clearly enough to recognise. Whether footage is evidence or just blur depends on three things working together: resolution, lens, and distance from the target.

There's a simple rule of thumb professionals use. To merely detect that someone is there needs very few pixels on the target. To recognise a person you already know needs more. To identify a stranger's face well enough to stand up later, the level you want at a door or counter, needs several times that pixel density. The same goes for reading a number plate at a gate.

In plain terms: a single wide-angle camera mounted far across the room will technically capture a thief, but the face will be too small in the frame to identify. You either move the camera closer to the target, narrow the lens, step up the resolution, or you accept that this camera only observes and you add a tighter one for identification. A good survey works this out for every important spot. A phone quote can't.

Resolution, recorder and storage - without the jargon

How many megapixels?

More megapixels means a clearer, more zoomable image, but also more storage and a higher price. The honest answer is "it depends on the shot." A 2MP camera is fine for a tight indoor entry or counter at short range. Step up to 4MP or 5MP for wide shop floors, gates, godowns and longer throws where you still need an identifiable face. Buying 8MP for a two-metre doorway is mostly money spent on storage you'll never benefit from.

DVR or NVR?

A DVR with analog cameras is the cheapest, simplest option and is fine for a small shop or office. An NVR with PoE cameras runs power and data down one cable, usually gives a sharper image, and scales better for factories or multi-block GIDC units. Neither is better in the abstract. It depends on your size and how you want to grow.

How many days of footage?

Your hard-drive size is decided by how many days you keep, how many cameras you run, and at what resolution. Thirty days is the floor in Gujarat, and it's also roughly what an insurance claim or a police request usually needs.

That means real capacity, and the part cheap quotes skip: a surveillance-grade hard disk, not a desktop PC drive. A desktop drive isn't built to be written to round the clock, so it tends to drop frames and fail early. The footage simply isn't there when you finally need it. Our quick insurance-readiness check walks through what an insurer typically looks for.

Don't ask how many cameras you need - ask what each one must do and where it has to be to do it.

Where a too-cheap quote is usually cutting corners

If one quote is dramatically lower than the rest, the savings are almost always hiding in one of these:

• 1080N sold as 1080P. They sound identical, but 1080N is a lower-resolution standard, well below true 1080p/2MP. A classic bait.
• "AI upscaled" or interpolated megapixels. Software-inflated pixel counts, not a real sensor. Often worse than an honest lower resolution.
• A recorder that can't store what the camera captures. Selling 5MP cameras into a DVR that only records at 2MP. You pay for megapixels you never keep.
• Desktop hard disk instead of a surveillance-grade one. The silent failure that loses your footage months later.
• "30 days" that's quietly far less. Undersized storage that also breaks Gujarat's minimum.
• No surge protection or UPS, and cheap CCA cable sold as copper. The corners you'll pay for in the first summer or monsoon.
• No site survey at all. A "package" quoted over WhatsApp almost guarantees blind spots, backlit white-outs and unreadable faces.

None of these show up on day one. Every one of them shows up the day you need the footage. If you want to see how an honest line-by-line quote is built, our guide on what CCTV installation costs in Ahmedabad breaks down each part.

The Gujarat law minimum - and why it's only a floor

Under the Gujarat Public Safety (Measures) Enforcement Act, 2022, certain establishments must have CCTV at entry and exit points (including parking), positioned to clearly capture faces and vehicle number plates, running round the clock even when closed, with a minimum 30 days of footage retained. It applies to places with high public access, such as jewellers, banks and ATMs, hospitals, restaurants, shopping complexes, petrol pumps and larger venues, and continued non-compliance can carry penalties.

Treat this as the floor, not a security plan. The law tells you the bare minimum so your footage is admissible. It says nothing about your godown, your counter, your safe or your loading bay. A system that only meets the law leaves your most valuable areas uncovered. The sensible approach is to design to comply first, then cover what protects your business. Our plain guide to the Gujarat CCTV law breaks down exactly who it applies to.

Ahmedabad realities: heat, dust, monsoon and power

A system that works on paper still has to survive an Ahmedabad summer. Cheap cameras can overheat and drop out in extreme heat. Monsoon humidity fogs lenses and corrodes cable entries. For any outdoor, gate or perimeter camera, insist on a proper weatherproof (IP66) rating, sealed cable glands and junction boxes, not a camera that was "fine indoors" stuck under an eave.

Power is the other silent killer. Our voltage fluctuates, and monsoon surges take out unprotected recorders. Surge protection plus a UPS on the DVR/NVR help keep the system, and the legally required round-the-clock recording, running through short power cuts. That is exactly when you most want it watching. A too-cheap quote usually leaves these out, and that's often why it's cheap.

For factories and GIDC estates such as Vatva, Naroda, Odhav, Sanand and Changodar, there's more to think about: heavy dust, vibration, chemical exposure and large perimeters. That can call for ruggedised cameras, perimeter coverage spaced around the boundary, gate cameras specced for truck number plates, and sometimes a PTZ to sweep a wide yard. As a very rough planning baseline, some installers use rough per-square-foot rules of thumb, but treat any such figure as a starting point for the survey, never a quote.

How a survey actually decides it

You can't price or plan honest CCTV from a photo. Here's how we turn a walk-through into the right system for your premises:

1. Walk the premises and list the jobsWe mark every spot that needs a face, a plate or a clear view - entry, counter, gate, godown, safe - in priority order.
2. Check angles, light and distanceWe avoid aiming cameras into the rising or setting sun, set mounting height for clear faces, and confirm each camera can actually identify what it must.
3. Size the recorder, storage and powerEnough capacity for a true 30 days, a surveillance-grade disk, and surge plus UPS protection for our power conditions.
4. Hand you an itemised written quoteCameras, resolution, cable type and brand, recorder, storage and labour, line by line, with genuine branded parts and proper bills.

The survey is free, on-site and carries no obligation, anywhere in Ahmedabad and Gandhinagar. We install Hikvision, CP Plus and Dahua systems, and one accountable person handles your job from survey to handover. No call-centre, no being passed around. We also set up the live view on your phone and demo it before we leave. Already holding another written quote? Send it to us on WhatsApp. We'll either match it, or show you honestly where a difference in storage, cable or placement is worth paying for. And if our survey says you need fewer cameras than someone else quoted, we'll tell you that too.

Five questions to ask any CCTV vendor

• Will you do an on-site survey before quoting, or is this a phone "package"?
• Can you show me, for the door and the gate, that the footage will actually identify a face and a number plate?
• Is the resolution genuine (true 2MP/4MP, not 1080N or "AI upscaled"), and can the recorder store it at that resolution?
• Is the hard disk surveillance-grade, and how many real days of footage will it hold?
• Is there surge protection and a UPS, and proper weatherproofing on every outdoor camera?

Get clear answers to those five and you can judge any CCTV proposal in Ahmedabad with confidence, by coverage, not by camera count. Not sure where your blind spots are? A free on-site survey is the honest way to settle it for your exact premises.

Common questions

How many CCTV cameras does a small shop usually need?

There's no fixed number - it depends on your layout, not your size. Most small shops need cameras on the entry/exit and the billing counter at minimum, then one or two more for the stock area, safe or a blind corner. A four-to-six camera setup covers many shops well if the placement is right, but yours could need fewer or more. A free survey is the only honest way to settle the count for your specific premises.

Is more megapixels always better for CCTV?

No. Higher resolution gives a clearer, more zoomable image but also costs more and eats far more storage. 2MP is fine for a tight indoor door or counter at short range; 4MP or 5MP makes sense for wide floors, gates and godowns where the target is further away. Matching resolution to the shot matters far more than buying the biggest number on the box - and the recorder has to be able to store whatever resolution you fit.

What's the minimum CCTV that Gujarat law requires for my business?

For establishments the Act covers, the minimum is cameras at entry and exit points (including parking), positioned to clearly capture faces and number plates, running round the clock even when closed, with at least 30 days of footage retained. Treat this as a legal floor, not a full security plan - it doesn't cover your godown, counter or safe. Our Gujarat CCTV law guide explains who the rules apply to.

Do you give a price over the phone or WhatsApp?

No, and that's deliberate. A flat phone number for CCTV is a guess that usually hides corner-cutting. We do a free on-site survey first, then hand you an itemised written quote covering cameras, cable, recorder, storage and labour, with genuine branded parts and proper bills. If you already hold another written quote, send it on WhatsApp and we'll either match it or explain the difference honestly.