Music maestro AR Rahman has refreshed the signature tune of Airtel telephony brand.

Bharti Airtel, a leading global telecommunications company, on Thursday unveiled a new identity – a shared worldwide vision across its operations in 19 countries in Asia and Africa.

Airtel also announced that it has crossed the significant milestone of 200 million customers, reinforcing its leadership position in global telecom.

The signature tune has also been refreshed by Rahman, making it youthful and dynamic in line with the new visual identity.

Like the earlier tune, which has made history as world's most downloaded mobile music with over 150 million downloads; the maestro has once again believed to have delivered a master piece.

The new tune retains the essence of the original but uses an inspiring musical style, with a universal appeal, that will be loved by listeners the world over, said the company.

Sunil Bharti Mittal, Chairman and Managing Director, Bharti airtel said, "Today, as we expand on the global stage, this new brand identity reinforces our promise to deliver innovative services and a superior brand experience to our 200 million customers across Asia and Africa."

The unveiling of the new identity also marks the 200 million customers milestone for Airtel.

Airtel crossed 50 million customers in October 2007 and 100 million in May, 2009. The company added the next 100 million customers in just 18 months.

For its customers in India, Airtel also announced that it was on course to launch its 3G services by the end of the year.