# Electronics and PCB assemblies from India: process and clusters > How electronics and PCB assemblies are made in India, step by step, and where: Noida, Bengaluru and Chennai. QA tests, HS heading and lead times. Source: https://sourcesquid.co/india-atlas/products/electronics-pcb-assemblies/ Product guide # Electronics & PCB assemblies. How India makes them. Electronics and PCB assemblies are best sourced from Noida, Bengaluru, Chennai, Hosur, Hyderabad and Pune. India's EMS providers offer SMT and through-hole assembly, testing and box build for industrial, consumer, automotive and IoT products. [Get a free teardown](https://sourcesquid.co/start/?product=electronics-pcb-assemblies) [Open in the Explorer](https://sourcesquid.co/explorer/#product=electronics-pcb-assemblies) 6 process steps 6 mapped clusters 8534 typical HS heading Where India makes it · **Electronics & PCB assemblies**6 clusters * __Clusters for this product * __Other clusters The manufacturing chain ## How it is made, in 6 steps. The sequence Indian factories follow, from raw material to an approved part ready to ship. 1. **DFM & BOM check**Component availability and alternates 2. **SMT** Paste print, pick-and-place, reflow 3. **THT & wave**Through-hole parts and selective soldering 4. **AOI & X-ray**Automated optical and BGA inspection 5. **Functional test** Test jig built to your procedure 6. **Conformal coat & box build**Coating, enclosure and final pack Key facts ## What buyers plan around. Typical HS heading 8534 (bare boards); assemblies by function, e.g. 8537, 8543, 8504.40 [Check 8534 in the HS code finder](https://sourcesquid.co/tools/hs-code-finder/?q=8534) Lead time Prototypes 3–5 weeks, production 6–10 weeks depending on components India's edge India's electronics manufacturing base has grown fast under government incentive schemes, giving buyers a strong option for high-mix and growing high-volume work. Materials * [Brass, copper and bronze](https://sourcesquid.co/india-atlas/materials/brass-and-copper/) * [Engineering plastics (ABS, PC, nylon)](https://sourcesquid.co/india-atlas/materials/engineering-plastics/) Process families * [Electronics & assembly](https://sourcesquid.co/india-atlas/processes/electronics-and-assembly/) Where to source ## The clusters that make it. Listed in the order buyers usually start. Each page covers the nearest ports and neighbouring clusters. [ Uttar Pradesh Major cluster **Noida – Greater Noida** Mobile phones, electronics assembly, garments Electronics & assemblyGarments & cut-make-trimPlastics & rubber moulding ](https://sourcesquid.co/india-atlas/clusters/noida/)[ Karnataka Major cluster **Bengaluru – Peenya** Machine tools, aerospace precision, electronics, garments, aluminium extrusions Machining & precisionElectronics & assemblyGarments & cut-make-trim+1 ](https://sourcesquid.co/india-atlas/clusters/bengaluru/)[ Tamil Nadu Major cluster **Chennai – Sriperumbudur** Cars, phones & electronics, engineering Auto & EV componentsElectronics & assemblyMachining & precision ](https://sourcesquid.co/india-atlas/clusters/chennai/)[ Tamil Nadu Major cluster **Hosur** Auto components, two-wheelers, EV, electronics Auto & EV componentsForgingElectronics & assembly ](https://sourcesquid.co/india-atlas/clusters/hosur/)[ Telangana Major cluster **Hyderabad** Bulk drugs & vaccines, aerospace & defence parts, electronics Chemicals & pharmaElectronics & assemblyMachining & precision ](https://sourcesquid.co/india-atlas/clusters/hyderabad/)[ Maharashtra Major cluster **Pune – Chakan** Forgings, auto & EV, precision engineering ForgingAuto & EV componentsMachining & precision ](https://sourcesquid.co/india-atlas/clusters/pune/) Quality ## Tests we plan for. The checks that usually sit in the inspection plan for this product. We agree the final list with you against your drawing and market. [How our inspections work](https://sourcesquid.co/quality/) * AOI and X-ray inspection * In-circuit test (ICT) * Functional test to buyer procedure * IPC-A-610 workmanship audit * Burn-in or environmental test where specified Electronics & PCB assemblies questions ## Straight answers. Anything else, ask us directly. A principal replies, not a bot. [anirudh@sourcesquid.co](mailto:anirudh@sourcesquid.co) ### Can Indian EMS companies build to IPC Class 3? Yes, several do, especially for aerospace, defence and medical work. State the class in your order and audit the line. ### Do I need to supply components? No. Most offer turnkey sourcing, but you can consign critical parts. ### How do I protect my design files? Sign an NDA and a manufacturing agreement covering IP, and share files only with the approved factory. More product guides ## Related products. [6 steps**Wire harnesses and cables** Silvassa, Noida, Chennai](https://sourcesquid.co/india-atlas/products/wire-harnesses-cables/)[7 steps**Sheet-metal enclosures and brackets** Faridabad, Pune, Bengaluru](https://sourcesquid.co/india-atlas/products/sheet-metal-enclosures/)[6 steps**Injection-moulded plastic parts with textures** Silvassa, Noida, Pune](https://sourcesquid.co/india-atlas/products/injection-moulded-plastic-parts/) Start here ## Get a free teardown for your electronics & PCB assemblies. Send one drawing, photo or quote. Within 48 hours we return how it is made, the best-fit Indian clusters and a realistic target price. [Get a free teardown](https://sourcesquid.co/start/?product=electronics-pcb-assemblies)[Talk to a principal](https://sourcesquid.co/contact/)