The Directorate of Revenue Intelligence (DRI) has slapped a Rs 4,389-crore show-cause notice on Oppo India for allegedly evading Customs duty by wrongfully availing of exemption benefits. Oppo India is a subsidiary company of China-based Guangdong Oppo Mobile Telecommunications Corporation and deals in mobile phone brands, including Oppo, OnePlus, and Realme. The duty evasion was detected during searches conducted by the DRI — an anti-smuggling agency under the Central Board of Indirect Taxes and Customs — on the office premises of Oppo India and at the residences of its key management. The searches led to recovery of incriminating evidence, indicating…