Surendra Kumar, 30, has an eye for detail and an instinct to match. A few weeks ago, Kumar, tasked with spotting fake Apple products at the New Delhi airport for Delhivery, a logistics company specialising in ecommerce deliveries, was betting on gut feel when he pointed out a package contained a fake iPhone.

When confronted, the seller indignantly unboxed the phone. Everything looked perfect — the phone had the trademark iPhone all-metallic body with the plastic wrap cover, and the box had its usual placements. But Kumar, who until a year ago used to scan Air India travelers and their bags for explosives, remained unconvinced and asked the vendor to switch on the iPhone.