Lucknow: Samajwadi Party, whose role could be crucial in a trial of strength in the Lok Sabha in case Left parties withdraw support to the UPA government at the Centre, on Monday kept its cards close to the chest on its stand saying a meeting of the UNPA will be convened soon to discuss the nuclear deal issue. "We are in touch with leaders of UNPA allies and a date will be fixed soon according to the convenience of all including SP general secretary Amar Singh who is currently on a foreign tour,' SP president Mulayam Singh Yadav told reporters here.