KARNAL: Liberty Shoes will set up three new manufacturing units one at Roorkee in Uttaranchal and two at Ponta Sahib in Himachal Pradesh to double its production capacity to one lakh pairs of footwear per day in the next three years and will invest Rs. 160 crore for the expansion plans. "We are coming up with three plants in 2006-07. We are increasing our capacity from 50,000 pairs per day to 75,000 pairs within the year and to one lakh pairs in three years,'' Liberty Shoes CEO, Adesh Gupta, told reporters here.