Custom Gaming PCs Built in Mumbai

A custom PC is worth building when an off-the-shelf machine spends your money in the wrong places. Start from what you actually want it to do — the game and the frame rate, the timeline and the codec, the model and the VRAM — and the parts follow from that. We plan it with you, check it fits before anything is bought, assemble it and test it.

Compatibility is checked by the builder as you choose parts, and again by a person before assembly begins.

Start your PC build · Ask a build specialist · Call +919372383903 · WhatsApp us · Get directions

RJ Digital Alliance
Shop No. 2, Lamington Road, Grant Road East, Mumbai, Maharashtra, 400007
Open Mo-Sa 10:00-21:30
Phone: +919372383903

Start from the work, not the parts

Five common briefs. Each one puts the money in a different place, and getting that split right matters far more than the brand on any single component.

Gaming — Resolution and refresh rate decide the graphics card; the CPU matters more at 1080p than at 1440p or 4K. Tell us the games and the monitor you have.
Video editing and content creation — Core count, fast NVMe scratch storage and plenty of RAM. Codec and timeline length change the answer more than the price bracket does.
CAD, architecture and 3D — Single-thread speed for modelling, cores for rendering, and enough VRAM for your scene sizes. Certified drivers matter for some packages and not others.
Local AI and machine learning — VRAM is the constraint that decides which models you can run at all. Everything else is throughput. Tell us the model sizes you want to load.
Office, study and general use — An SSD, enough RAM and quiet cooling. This is where a custom build saves the most money, because it stops you paying for a graphics card you will never use.

What gets checked before anything is bought

The builder checks these live as you pick parts, and a person checks them again before assembly. These are the ones that turn into a return if missed.

Socket and chipset — The processor physically fits the board, and the board supports that exact model — including whether it needs a BIOS update first, and whether that update is possible with the parts in hand.
Memory generation, speed and slots — DDR4 against DDR5, the speed the board will actually run, and how many slots the configuration leaves free for later.
Graphics card clearance — Length against the cabinet, thickness in slots, and whether it fouls the drive cage or the front fans.
Power supply capacity and connectors — Total draw with headroom for transient spikes, and the physical connectors the card requires rather than an adapter chain.
Cooler height and radiator fit — Air cooler height against the side panel; radiator size against the mounting points the cabinet actually has.
Storage lanes and M.2 keying — Whether populating a second M.2 slot disables SATA ports on that board, which is a specification detail rather than a fault.
Display outputs against your monitors — The right ports, in the right numbers, at the refresh rate you bought the monitor for.

Open the PC builder

How a build runs

Brief (You and a specialist) — What the machine is for, the budget, the monitor, the software, and how long you want it to last before an upgrade.
Specification and compatibility review (Build specialist) — A parts list, with the trade-offs explained: what we would change if the budget moved either way, and why.
Confirmed quote (Build specialist) — Itemised, GST inclusive, dated. Component prices move, so a quote is valid as stated on it rather than indefinitely.
Assembly (Workshop) — Built and cable-managed, with the parts checked against the quote as they go in.
Firmware and drivers (Workshop) — BIOS updated where it is needed, memory profile enabled, storage configured, operating system and drivers installed where that was part of the order.
Testing (Workshop) — Powered up and stress-tested, with temperatures watched under sustained load rather than a quick boot-and-ship.
Handover (Counter) — The invoice records every component and its serial number, so each part carries its own traceable warranty.

Start planning a build

What testing actually means here

Every machine is powered on, brought up to a stable operating system, updated to current firmware where that is appropriate, and run under sustained load while temperatures are watched. The point is to find the failures that only appear when a machine gets hot — a cooler that is not seated properly, a fan curve that lets the CPU throttle, a power supply that struggles under a transient spike.

We describe this as assembled, cable-managed, BIOS-updated and stress-tested, because that is what it is. We do not describe it with terms we cannot show you a record of.

Parts available to build from

Counted live from the catalogue. Everything in the builder is priced at the same figure the order will charge.

9,937 products in stock right now — Published products the inventory system currently reports as in stock or limited. Stock moves during the day; confirm before travelling.
Products from 197 brands — Distinct brands that have at least one published product. It is not a statement of dealership or authorisation.

Counted 13 September 2026 at 04:45 pm IST, directly from the live catalogue.

Budgets

Rather than publish fixed builds at fixed prices — which are wrong within a fortnight and cannot account for what is on the shelf today — set your budget in the builder and it assembles a complete compatible machine from parts that are actually in stock, at the price the order will charge.

If you want a second opinion on what it produced, bring the list to the counter at Lamington Road, Mumbai or send it over on +919372383903. Telling you to spend less in one place and more in another is the most useful thing we do.

Set a budget and see a build

Why buying locally matters afterwards

The build is the easy part. What follows is upgrades two years later, a warranty claim on one component out of ten, a drive that starts failing, or a question about whether a new card will fit. Every part on your invoice is recorded with its serial number, so a claim on one component does not become an argument about the whole machine.

You can also bring the machine back to the same counter at Lamington Road, Mumbai rather than posting it somewhere.

Questions people ask

How long does a custom build take?

When every part is in stock, assembly and testing is usually a same-day or next-day job. Anything we have to order in adds its own lead time, which we tell you at quotation rather than after you have paid.

Can I bring my own parts?

Yes. We will check them for compatibility with the rest of the build first, and say so if something will not work. Parts you supply carry whatever warranty you bought them with, not ours.

Is Windows included?

Only if it is on the quote. We can supply and activate a licence, or install onto hardware you have licensed yourself. It is listed as a line item either way rather than being assumed.

What warranty does a custom PC come with?

Each component carries its own manufacturer or seller warranty, recorded against its serial number on your invoice. That is deliberate: a failed drive is a claim on the drive, not a dispute about the machine. Our assembly work is covered separately.

Can you deliver a built PC?

Yes, across India, with cost and timing shown at checkout. A built machine is packed for transit. Collection from the counter at Lamington Road, Mumbai is also available once it has passed testing.

Will you tell me if I am overspending?

Yes. The most common change we suggest is moving money from a processor to a graphics card, or out of both and into an SSD and a better monitor. It is worth asking before you order — call +919372383903.