This year's edition of the leading mobile event in the world, the Mobile World Congress began amid much excitement in Barcelona, Spain.

The four-day long event is expected to see 60,000 visitors and about 1,400 companies are expected to attend the show that will see launches of several latest high tech gadgets. The cellphone industry's most important trade show began on Sunday in the southern Spanish city with visits gathering at the venue to take a look at the latest and upcoming products in the market.

HTC Corp has launched new mobile phone at the Barcelona Mobile World Congress to take on competition and revive its positions in the market.

The company has launched its HTC One smartphone series to take on rivals in the market. The series include three models, the One X, One S and One V. All the tree devices are powered by the latest version of Google's Android software.

The company is also offering the HTC's ImageSense camera technology in the handset that it claims offers similar photography as other digital cameras with its fast autofocus and low-light shooting. The handset also comes with photo storage and sharing software.

The HTC One smartphone series comes with faster processors for graphics and are packed in either polycarbonate or metal cases that are more resilient than standard covers.

One of Asia leading smartphone maker has brushed off analyst forecasts of the biggest sales drop on record by saying that they do not have enough information about the company's product lineup.