Dixon Technologies (India) Limited (NSEI:DIXON), India?s largest electronics contract manufacturer, is in initial talks to buy a majority stake in the local phone-making unit of China?s Transsion Holdings (Shenzhen Transsion Holdings Co., Ltd. (SHSE:688036)), people aware of the details told ET. Transsion?s India business is valued at about INR 7,000 million, they said. The talks come amid greater scrutiny of Chinese firms operating in the handset ecosystem.