Calcutta, Jan 7 :    Calcutta, Jan 7:  United Breweries (UB) has decided to promote its Kingfisher brand of apparel at the national level. A promotional campaign will be unleashed in the print media from February. 'We are serious about the Kingfisher line of clothes and we do not treat it as a surrogate business,' said Vijay Mallya, chairman, United Breweries. The clothes business is an extension of the company's flagship brand, Kingfisher. 'The sports apparel represent joy, jest, youthfulness, Kingfisher's image,' said Shekhar Ramamurthy, UB's divisional vice-president. Today, United Breweries sponsored the Kingfisher Derby for the first time in this city which was so far restricted to only in Mumbai and Bangalore. This is part of the company's brand promotion exercise targeted towards increased market share in the city.