Both the deliveries jumped on the forward cottonseeds oilcake market on Wednesday in the process of trading, dealers said. The December vaida closed at Rs 1310.30 and the next day it opened with a gain of Rs 1.10 to Rs 1311.40 in the early session, dealers said. The January vaida closed at Rs 1452.50 and it commenced with Rs 1.20 to Rs 1453.70 in the morning session, they added.