Karachi is Pakistan's largest commercial city, and its retail runs on volume. Mobile markets in Saddar are among the biggest in the country, with counters selling handsets, accessories and repairs to customers from across the city and to traders from other towns. Many owners run a shop and a stall, or a retail counter and a wholesale business, from the same stock. Competition is intense, with dozens of counters selling the same models on the same floor, so price, trust and speed decide where a customer buys and whether they come back for the next phone.
Shop owners come from every community in the city, and Urdu is the common language at the counter. Credit is everywhere: wholesalers supply on khata, regular customers buy now and pay at the end of the month, and phones are sold with part payment. A system that cannot track credit properly is no use here. Many shops still keep this khata in a register book behind the counter, which works until a page goes missing or a relative forgets to write down a payment, and then the dispute costs more than the sale.
The year peaks around Ramadan and the run-up to Eid ul Fitr, followed by Eid ul Adha, wedding season in winter, back-to-school and 11.11 online sales. Load-shedding and connectivity gaps are real, so shops plan for backup power and a mobile internet backup. Gift and general stores in residential areas see their own peaks around school terms and family events, and owners who know their best sellers from real figures order more confidently before each rush. Clear records keep friendships and supply lines intact.