India showcases its military might with tanks and flyovers by roaring fighter jets in the heart of New Delhi to mark its annual Republic Day. The yearly parade is a tightly choreographed spectacle of motorbike stunts, traditional dance and camel-mounted soldiers at a time when the emergent Asian power faces onerous security challenges. Republic Day marks the adoption of India's post-independence constitution and Thursday's event is the latest of several ceremonies commemorating 75 years since the end of British colonial rule last August. For the first time the parade was held in the revamped colonial-era boulevard that hosts India's most important government buildings, following years of renovations at the direction of Prime Minister Narendra Modi's nationalist government. IMAGES AND SOUNDBITES. SEE ALSO VIDEO 337V3F8.