Maharashtra Governor Bhagat Singh Koshyari called upon Sharad Pawar's Nationalist Congress Party this evening, refusing Shiv Sena's request for another 48 hours to stake claim to form government. The NCP, which has time till 8.30 pm tomorrow, said it will take a call on the issue after holding discussions with the Congress. Reluctant to form an alliance with the Shiv Sena, the Congress had kept it waiting. "We will get back to you," Sonia Gandhi reportedly told Uddhav Thackeray, who, sources said, had made "numerous calls" as the two ideologically mismatched parties tried to collaborate. The Sena set the stage for talks this morning after pulling out its lone minister in Prime Minister Narendra Modi's government, Arvind Sawant, signaling its break-up with the BJP-led National Democratic Alliance (NDA).