Aircel group is an Indian mobile network operator headquartered in Chennai, that provides wireless voice, messaging and data services in India. It is a joint venture between Maxis Communications Berhad of Malaysia and Sindya Securities & Investments Private Limited, whose current shareholders are the Reddy family of Apollo Hospitals Group of India, with Maxis Communications holding a majority stake of 74%. Aircel commenced operations in 1999 and today the leading mobile operator in Tamil Nadu, Assam, North- East and Chennai.