Specialty Restaurants will invest Rs 150 crore on expanding its brands, especially the Chinese fine-dining chain Mainland China. The company is launching its second Oriental catering institute in Chennai that also imparts restaurant management training, informed a top company official.Having introduced several restaurant brands, including Oh! Calcutta, Sigree, Machaan and Flame & Grill, the Rs 156 crore group will now concentrate on its premier brand Mainland China. The number of restaurants under the brand will be scaled up from 32 to 100 in two years.The company is also coming up with its second catering institute at Sriperumbudur near Chennai on a two-and-half acre site. The company has invested Rs 25 crore on the institute that also comprises of residential facilities.The institute will focus on contemporary Indian style of catering and Oriental cuisines like Indian, Chinese, Thai and Indonesian. The company also claims to be the first entity to offer training in restaurant management in India, covering the entire aspects of the business.