Both deliveries appreciated on the forward cottonseeds oilcake market on Tuesday in the process of trading, dealers said. The July vaida closed at Rs 998.50 and it opened with a gain of 30 paisa at Rs 998.80 in the morning, they said. The December contract closed at Rs 950.00 and it commenced with rupee one gain at Rs 951.00 in the wee hours, they said.