NTT Docomo is the largest mobile phone operator in Japan and a subsidiary of NTT. Tata Teleservices in India is an affiliate of NTT Docomo and operates the TATA DOCOMO GSM service in India. Tata Docomo implemented a social media strategy to humanize the telecom brand and engage consumers through social platforms like Twitter, Facebook, and Orkut before its launch. The strategy aimed to build loyal customers who would champion the brand through word-of-mouth marketing.