National airports operator AAI has terminated discussions with a Singaporean government agency to operate and maintain Ahmedabad and Jaipur airports, a proposal which was floated during Prime Minister Narendra Modi's visit to Singapore last November. The AAI decision follows its assessment that the Changi Airport's proposal would not be commercially viable. The AAI had signed a memorandum of understanding (MoU) with Singapore Cooperation Enterprise (SCE) during Modi's visit to the island nation. In January, the Union Cabinet had also given its ex-post facto approval to the MoU. Indianmandarins has learnt that AAI held discussions with people from Changi Airport but could not reach "mutually agreeable terms".SCE had nominated Changi Airport for the proposed project. Changi Airport Group (Singapore) Pte Ltd runs the Changi airport in Singapore.