Prime Minister Narendra Modi and senior BJP leaders will attend the oath-taking ceremony of Manohar Lal Khattar as chief minister of Haryana at Panchkula today. "Prime Minister, BJP chief Amit Shah, some Union Cabinet Ministers, Chief Ministers of the BJP ruled states and senior leaders among others would attend the function today," Haryana BJP spokesman Vir Kumar Yadav said in Chandigarh on Saturday.