Delhi has huge trading/wholesale/retail electronics ecosystem where Noida–Greater Noida has much stronger manufacturing ecosystem. Major electronics markets or hubs where you can find large concentrations of electronics shops, wholesalers, components, computers, mobile accessories, electrical goods, etc., Delhi has several major clusters.
Major electronics markets in Delhi
1. Nehru Place Market — South Delhi
This is probably the most famous electronics/IT market in Delhi. It is particularly strong in computers, laptops, components, peripherals, printers, storage devices, networking equipment, repairs and used/refurbished equipment. It is one of the main destinations for computer hardware and IT products.
Nearest metro station: Nehru place
2. Bhagirath Palace — Chandni Chowk/Old Delhi
More focused on electrical goods, lighting, LEDs, electrical components, cables, switches and related equipment. It is a major wholesale market rather than primarily a computer market.
Nearest metro station: Chandni Chowk
3. Gaffar Electronics Market (Karol Bagh) — Karol Bagh
Particularly known for mobile phones, mobile accessories, spare parts, gadgets and imported/grey-market electronics. Be more careful about warranty, authenticity and billing here.
Nearest metro station: Karol Bagh
4. Lajpat Rai Market — Chandni Chowk
Strong in electronic components, CCTV/security equipment, cables, accessories, lighting and various consumer-electronics products.
Nearest metro station: Lal Qila
5. Wazirpur Commercial Complex — North Delhi
More relevant for computers and industrial electronics, with a concentration of computer/electronics sellers.
Nearest metro station: Shalimar Bagh