The impressive march-past was watched by Chief Guest, Bhutan king Jigme Khesar Namgyel Wangchuck, Vice President Hamid Ansari, Prime Minister Manmohan Singh, Defence Minister A K Antony, UPA Chairperson Sonia Gandhi, and top political and military brass.
Police and other para-military forces turned Delhi into a a virtual fortress for the Republic Day celebrations as helicopters scanned from air, snipers kept a hawk-eye vigil from rooftops and armed personnel at every nook and corner provided a ground-to-air security apparatus.
Minutes before the parade began, Singh, Antony and chiefs of Army, Navy and Air Force laid wreaths at 'Amar Jawan Jyoti', an eternal flame in the memory of those who laid down their lives while defending the nation.
After the customary 21-gun salute and unfurling of the national tricolour by President Mukherjee, the spectacle began with four army helicopters flying above Rajpath carrying the national flag and the three flags of the Army, Navy and Air Force.
The country showed its military strength with the MBT Arjun Tank, Armoured Ambulance Tracked Vehicle, BrahMos missiles and 214 mm Pinaka rockets, 15 Metre Sarvatra Bridging System.
The Army contingent from horse-mounted columns of the 61st Cavalry, Mechanised Infantry Regiment, Maratha Light Infantry, Dogra Regiment, Garhwal Rifles, Ladakh Scouts, 8 Gorkha Training Centre, Army Ordnance Corps and Territorial Army (Punjab) marched to the martial tunes.
The next to follow were smartly-dressed Navy personnel and then the Air Force contingent. The Air Force contingent was led by Flight Lieutenant Heena Pore.
A mini version of INS Vikramaditya which will join the Naval fleet by the end of this year was also part of the parade which highlighted Indian Navy's blue water operating capability.
The DRDO displayed the Armoured Amphibious Dozer (AAD), an indigenously developed versatile Combat Engineer support equipment with excellent earth moving and amphibious capabilities in varied terrain. Airborne Early Warning and Control System and Naval Sonar were also displayed.
Other marching contingents were those of camel-mounted BSF, Assam Rifles, Coast Guard, CRPF, ITBP, CISF, SSB, RPF, Delhi Police, NCC and NSS.
As the country's armed and police forces demonstrated their might, states and different departments put up an impressive show when they showcased their rich cultural diversity in full display in 19 tableaux -- 14 from states and five from ministries. '
This year, the number of tableaux has been reduced to 19 from last year's 23.