The May vaida was lower and the July contract was inert on the forward cottonseeds oilcake market on Saturday in process of trading, dealers said. The May contract closed at Rs 1306.50 and it opened at Rs 1306.30, showing 20 paisa gain during the session, they said. The July vaida closed at Rs 1350.00 and it opened at the same level in the morning session, they said.