New Delhi, Rabi'II 6, 1436, Jan 26, 2015, SPA -- India celebrated its 66th Republic Day on Monday with a display of military might and cultural diversity in the national capital, with US President Barack Obama joining as chief guest, dpa reported. India celebrates the day its Constitution was adopted - January 26, 1950 - as Republic Day. The parade included marching troops, military bands, a show of tanks, missiles and other military hardware, and camel-mounted paramilitary troops. --SPA 11:16 LOCAL TIME 08:16 GMT www.spa.gov.sa/w