Computer Shop in Lamington Road, Mumbai

Store details

Everything you need to find us, check we are open, and confirm who you are buying from.

Business name

RJ Digital Alliance

Address

Shop No. 2, Lamington Road, Grant Road East, Mumbai, Maharashtra, 400007, India

Opening hours

Mo-Sa 10:00-21:30

Phone

+919372383903

WhatsApp

+919372383903

Email

Support@rj-quantum.com

GSTIN

27AXAPC3784A1ZX

Trading since

2021

Directions

Open in Google Maps

These are the same details that appear on our invoices and our Google Business Profile. If you find them stated differently anywhere else, the version here is the one to trust — and please tell us where you saw the other one.

Where to find us

RJ Digital Alliance, Shop No. 2, Lamington Road, Grant Road East, Mumbai, Maharashtra 400007.

Open Mo-Sa 10:00-21:30.

The shop is in the Lamington Road / Grant Road East computer market, the established place in Mumbai to buy computer hardware in person — which means you can compare parts, ask questions and walk out with the item the same day.

Phone: +919372383903. Ringing ahead is the quickest way to confirm a specific model is on the shelf.

What you can do here

Five different reasons people come to the counter. Each one has a page explaining how it works before you make the trip.

• Buy parts over the counter — Components, peripherals and complete systems, with the price and stock on this site matching the counter.
• Have a PC built — Plan the specification online, or bring a parts list in and we will check it before anything is bought.
• Get a machine repaired or upgraded — Diagnosis first, cost quoted before chargeable work. Machines bought elsewhere are fine.
• Buy a refurbished laptop — Condition and warranty stated per unit, and you can test it at the counter before paying.
• Order in quantity for a business — GST invoicing, tier pricing after verification, and written quotations that convert into an order.

What is on the shelves

Counted from the live catalogue rather than typed into this page, so it cannot quietly go out of date.

• 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.
• 14,096 products published on this site — Products published on this website. Being published is not the same as being in stock.
• Products from 197 brands — Distinct brands that have at least one published product. It is not a statement of dealership or authorisation.
• 650 categories holding published products — Categories holding at least one published product, directly or through a child category. Empty categories are excluded.

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

• Graphics cards
• Processors
• Motherboards
• RAM
• SSDs
• Hard disks
• Power supplies
• Cabinets
• Liquid coolers
• Case fans
• Monitors
• Keyboards
• Mice
• Laptops
• Gaming laptops
• Routers
• UPS
• Printers

Before you visit

The market is busy and parts move quickly. Ten minutes of checking saves a wasted journey.

1. Find the exact model on this site (You) — Prices and stock status shown on a product page are the live ones. Note the full model name — "RTX 5070" is several different cards.
2. Ring ahead and have it held (You and the counter) — Call +919372383903 with the model. We will confirm whether it is physically on the shelf and can keep it aside for same-day collection.
3. Bring what the purchase needs (You) — Your GSTIN if you want a business invoice, the old part if it is an exchange or a compatibility check, and the machine itself if it is a repair.
4. Check it at the counter (The counter) — Seal, model number and accessories are checked in front of you before payment, and the invoice is raised against the serial number.

• Browse the catalogue
• Plan a build first

How to choose a reliable computer shop on Lamington Road

This applies to any shop in the market, including ours. A seller who does these things is one you can hold to account afterwards; one who avoids them is not.

• A GST invoice with the serial number on it — Without it you have no warranty claim, no proof of purchase and no recourse. Ask before you pay, not after.
• The exact model, written down — Model numbers differ by one or two characters between very different products. Get the full part number on the quote.
• A stated warranty term and who honours it — Manufacturer warranty, distributor warranty and seller warranty are three different things with three different processes.
• Sealed, or an open-box status you were told about — An open box is not a problem. An open box you only discover at home is.
• A quote with a date on it — Component prices move. A quote with no date cannot be compared against another shop and cannot be held to.
• A straight answer about compatibility — If a seller cannot say why a part fits your board, they have not checked. Ask what would need to change if it did not fit.

• The full Lamington Road buying guide
• Warranty and service policy

Same-day counter pickup

Order online and collect from the counter the same day once stock is confirmed, or simply come in and buy over the counter. Call +919372383903 to have an item kept aside.

If you would rather not travel, we deliver across Mumbai and the rest of India, with cost and timing shown at checkout.

GST invoices, business and bulk buying

Every purchase can be invoiced with GST. Verified business accounts — resellers, corporates, schools, hospitals and government bodies — see their own tier pricing automatically and can request bulk quotations.

• Business & bulk supply
• Wholesale and trade supply

Questions people ask