NCDEX Soyabean down by 2.52% on weak demand:-NCDEX Spyabean December contract closed down on Tuesday and registering loss of 2.52% open:3880 High:3880 Low: 3772 Close: 3791. Chana down by 2.37% on sluggish demand:-NCDEX Chana December contract is closed down by 2.37% on Tuesday.