Prime Minister Narendra Modi greeted the nation on Tuesday on the occasion of Republic Day.
India is celebrating its 72nd Republic Day, the day its Constitution came into force in 1950.
"Wishing all the people of India a Happy Republic Day. Jai Hind!" Modi tweeted.
Other Union Cabinet Ministers also extended their greetings to the nation on the occasion.
Greeting the nation, Union Home Minister Amit Shah tweeted, " 'Republic Day' is a symbol of India's multicolored diversity and rich cultural heritage. I remember all the great personalities whose struggle enforced our Constitution to this day in 1950 and also salute all the brave men who have protected the Indian Republic with their valor."
"Warm wishes to all citizens of India on the occasion of 72nd #RepublicDay. Jai Hind!" wrote Defence Minister Rajnath Singh on his official Twitter handle.
Union Road Transport and Highways, Micro, Small and Medium Enterprises Minister Nitin Gadkari also congratulated the citizens."Hearty congratulations to all the citizens on Republic Day," the minister tweeted.
Extending greetings on the occasion, Union Railways, Commerce and Industry, Consumer Affairs, Food and Public Distribution Minister Piyush Goyal on the occasion said that Republic Day is an occasion to celebrate the sovereignty and spirit of being Indian.
"As we commemorate 72nd #RepublicDay, let us remember all those individuals who gave us a Constitution that ensures the well-being of all citizens. This is a day to celebrate our nation's sovereignty & spirit of being Indian," tweeted Goyal.
Union Minister Ravi Shankar Prasad on the occasion tweeted, "Let us stand united to celebrate the glory of our Republic and feel proud of being an Indian. Happy #RepublicDay."
Meanwhile, security has been tightened in the national capital with police barricades set up at various places in the city including ITO, Yamuna Bridge, and other locations ahead of the Republic Day parade.
-- With inputs from PTI