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Custom PC Builder Online — Mumbai
Free online custom PC builder: set a budget and get a complete compatible machine, or pick every part yourself — CPU, motherboard, RAM, GPU, storage, PSU, cabinet, cooler and monitor. Socket, memory, power draw and physical fit inside the cabinet are checked live. Ask whether your configuration runs a named game or program — GTA V, BGMI, Valorant, Cyberpunk 2077, Premiere Pro, Blender, AutoCAD, Tally — and the answer is worked out from the parts you chose rather than guessed. Every PC is assembled, cable-managed, BIOS-updated and stress-tested before delivery.
What the builder checks
CPU socket and motherboard chipset agreement
Memory generation, speed and slot count
Graphics-card length and cooler height against the cabinet you picked
Total power draw against the power supply, with headroom
Storage interface and available M.2 or SATA ports
Whether the parts you chose actually run a named game or program
Start from a budget or from parts
Set a budget and get a complete compatible machine, or choose every component yourself. Prices are the live catalogue prices this site charges, so the build total is the order total.
Before it reaches you
Every PC is assembled, cable-managed, BIOS-updated and stress-tested before delivery. Bring an existing part list in to the counter at Lamington Road, Mumbai if you would rather talk it through in person.
Example builds, at the price we will charge
Complete machines assembled from the live catalogue — every part is a product
you can open, at the price the order will charge. Change any component in the
builder and the total updates with it. Prices as of 2026-09-13.
Gaming PC — ₹70,835
Cabinet: TAG Gamerz Pulser ARGB M-ATX Mid Tower Cabinet (Black) — ₹3,399Cooling: Deepcool AK400 CPU Air Cooler (White) — ₹2,698Processor: AMD Ryzen 5 5600F AM4 Desktop Processor (4 GHz / 6 Cores / 12 Threads) — ₹12,345Graphics card: Gigabyte GeForce RTX 3050 WINDFORCE OC 6G Graphics Card — ₹17,999Keyboard: AULA AC306 Type2 Wireless Retro Keys Keyboard & Mouse Combo | Blue (AC306U2) — ₹2,499Monitor: ViewSonic VA2215-MH-1N 22″ 100Hz 1080p FHD VA Panel Monitor — ₹5,449Motherboard: Gigabyte B550M K (rev. 1.0) AM4 Micro-ATX Motherboard — ₹7,499Power supply: Gamdias Kratos M1 750B RGB 750 Watt 80 Plus Bronze SMPS — ₹4,749Memory: Acer HT100 16GB DDR4 3200 MHz UDIMM — ₹9,099Storage: MSI SPATIUM S270 SATA 2.5 480GB Internal Solid State Drive — ₹6,099
Change any part in the builder
Gaming PC — ₹1,04,308
Change any part in the builder
Gaming PC — ₹1,48,542
Cabinet: NZXT H5 Flow 2024 Compact ATX Mid-Tower PC Gaming Case (Black) — ₹7,499Cooling: Ant Esports ICE-Glow 240 ARGB CPU Liquid Cooler – White — ₹5,999Processor: AMD RYZEN 7 8700F 8 CORES UPTO 5 GHZ AM5 PROCESSOR — ₹20,200Graphics card: SAPPHIRE PULSE AMD RADEON RX 9060 XT 16GB — ₹49,999Keyboard: AULA AC306 Type2 Wireless Retro Keys Keyboard & Mouse Combo | Blue (AC306U2) — ₹2,499Monitor: ViewSonic VX2776-SMHD Monitor — ₹11,999Motherboard: MSI B650 Gaming Plus Wifi AMD AM5 Motherboard — ₹16,349Power supply: EVGA 1000 GQ ATX 3.1 1000 Watt Gold Semi Modular Smps — ₹10,499Memory: Patriot Signature Series 16GB (1 x 16GB) DDR5 5200MHz CL42 UDIMM Desktop RAM — ₹15,999Storage: Transcend 512GB | PCIe M.2 SSD 400S | 42mm | MTE400S | 3D NAND Flash | NVMe PCIe Gen3 x4 | up to 2,000/1,100 MB/s | 100 TBW | 5 Yrs. Warranty — ₹9,999
Change any part in the builder
Open the PC builder · How we build and test custom PCs · Browse components
RJ Digital Alliance · Shop No. 2, Lamington Road, Grant Road East, Mumbai, Maharashtra, 400007, India · +919372383903 · Support@rj-quantum.com
Computer shop at Lamington Road, Mumbai. Same-day counter pickup. GST invoice available · Warranty and condition shown per product · UPI, Credit Card, Debit Card, Net Banking · Dealer and bulk pricing for verified businesses.
Shop
All products — Full searchable catalogue with GST-inclusive retail prices and live stock.Current offers — Every discount running right now, with the date each one ends.
Services
Visit the shop — The physical computer shop at Lamington Road, Mumbai — address, opening hours, directions and what can be bought over the counter the same day.Shop by budget — Every price band we can actually fill today: graphics cards under 30,000, gaming PCs under 50,000, laptops under 1 lakh and more. Live counts and real prices, so a band only appears while there is stock behind it.Build a custom PC — Free online custom PC builder: set a budget and get a complete compatible machine, or pick every part yourself — CPU, motherboard, RAM, GPU, storage, PSU, cabinet, cooler and monitor. Socket, memory, power draw and physical fit inside the cabinet are checked live. Ask whether your configuration runs a named game or program — GTA V, BGMI, Valorant, Cyberpunk 2077, Premiere Pro, Blender, AutoCAD, Tally — and the answer is worked out from the parts you chose rather than guessed. Every PC is assembled, cable-managed, BIOS-updated and stress-tested before delivery.Computer & laptop repair — Computer and laptop repair in Mumbai — diagnostics, screen and keyboard replacement, RAM and SSD upgrades, virus removal, data recovery and annual maintenance contracts.Refurbished laptops — Tested refurbished and second-hand laptops in Mumbai, with the grade, condition and warranty stated for each machine.Business & bulk supply — IT procurement for businesses — bulk and dealer tier pricing, GST invoicing, quotations and fulfilment for offices, institutions and resellers.Wholesale & trade supply — Trade supply of computer components in quantity to resellers, system integrators and repair businesses in Mumbai — send a parts list or part numbers, get an itemised and dated GST quotation, and see verified tier pricing applied automatically across the catalogue. Order minimums, payment terms and delivery timings are agreed per account rather than published as one rule.Custom gaming PC builds — Custom gaming, creator, CAD and local-AI PCs built and tested in Mumbai. Explains how the workload decides the parts, what compatibility is checked before anything is bought (socket and chipset, memory generation, GPU clearance, PSU capacity and connectors, cooler height, M.2 keying), and what assembled, BIOS-updated and stress-tested actually means here. Each component keeps its own serial-numbered warranty on the invoice.
Support & Guides
Support & Guide Centre — Practical support guides written by the counter and workshop team — desktop and laptop upgrades, compatibility checks before buying, troubleshooting trees for no-power, no-display, undetected drives and overheating, Windows and driver problems, plus orders, invoices, delivery, returns and warranty. Each guide states who it applies to, its safety level, and the point at which to stop and ask a technician.Component news & comparisons — What is actually new on the shelves, written up from the published specifications rather than from a press release: processors, graphics cards, memory and storage, what each figure commits you to in the rest of the build, and side-by-side comparisons of the parts people are choosing between. Prices and stock are the shop’s own, in Mumbai.Machines we have built — Custom PCs built and tested in the Mumbai workshop, filmed with the full parts list and the reasoning behind each choice. Every showcase resolves its parts against the live catalogue, so it shows what the same machine costs today and which parts have changed or been discontinued since filming.Lamington Road buying guide — Independent checklist for buying computer parts at the Lamington Road market in Mumbai: how to compare two quotes like for like (SKU revision, GST inclusion, payment surcharge, warranty type, quote date), how to verify a part is what it claims to be from seal and serial number, the compatibility mistakes that come back most often, and when to stop and ask a technician. Written to be useful whichever shop you buy from.Track a repair — Check the live status of a repair or service job by ticket number.
Build guides
PC build guides — Complete PC builds at each budget, every part priced live from our own stock, with the reasoning behind each choice.Gaming PC under ₹50,000 — A complete 1080p gaming machine for under ₹50,000 — full parts list, live prices, and why the graphics card takes a third of the budget.Gaming PC under ₹1,00,000 — A complete 1440p gaming machine for under ₹1,00,000 — full parts list, live prices, and what the extra fifty thousand actually buys.
Company
About us — Who runs the business, how long it has traded, where it operates from and how it sources stock.Contact us — Address, phone, e-mail, WhatsApp and opening hours, plus how to reach support for an existing order.Customer reviews — Verified customer reviews and ratings.
Policies
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