Over 2,500 delegates and industry bigwigs including Adi Godrej, Anil Ambani, Tulsi Tanti, Anand Mahindra, Anil Agarwal, Gautam Adani and Cyrus Mistry showed up at Rajasthan chief minister Vasundhara Raje Scindia's showpiece business summit 'Resurgent Rajasthan' on Thursday, but one guest was conspicuously absent: Prime Minister Narendra Modi.