Contracts were mixed on the forward cottonseed oilcake market on Tuesday in process of trading, dealers said. The January vaida that had closed higher at Rs 1253.80 opened with a gain of 60 paisa to Rs 1254.40. The March vaida which ended at Rs 1239.60 opened with a loss of 40 paisa at Rs 1239.20 in process of trading, they added.