"The demand for high-end coated multi-layered paperboard in the country is seven lakh tonnes currently and growing annually by over 15 percent. At present, our capacity for high-end packaging paper is 1,32,000 tonnes per annum. In the next three years, we will double the capacity with an investment of Rs.1,000 crore," Emami Paper executive director P.S. Patwari said here.