Chandigarh, Jan 23: Chandigarh was put under maximum security cover on Saturday ahead of the arrival of French President Francois Hollande and Prime Minister rendra Modi on Sunday afternoon. Hollande, along with Modi, will meet and address CEOs of French and Indian companies at a business summit to be held here on Sunday. The French president is coming to India to be the chief guest at the Republic Day parade at New Delhi's Rajpath on January 26.