State-run Bharat Sanchar Nigam Ltd (BSNL) said that it has launched its much awaited third-generation (3G) services across 11 cities.

BSNL also said that the 3G services will permit users to experience enhanced communications such as rich voice, video and data services.

India's No. 4 mobile operator also said that it will expand 3G services to other regions in the country.

In an announcement, BSNL said that it had invested around Rs 27 billion ($530 million) on the launch of 3G infrastructure, and would cover all district headquarters and major commercial towns.

The successful launch of 3G services across different regions in Northern and Eastern parts of India brings 3G access to over 15 million people.

It will also help in driving quicker uptake of 3G services to a large client base.

Later this year, India will hold an auction of 3G spectrum, but public companies have already been passed one slot in each service zone, and will have to match the maximum bid from private operators.

Third-generation services give users an option to have the benefit of quick Internet access, games and lots of multimedia content from maps to music on their handsets.

BSNL offers telecoms services across India apart from the major cities of New Delhi and Mumbai, which are covered by another state-owned firm, Mahanagar Telephone Nigam Limited (MTNL).