Protesting farmers who entered the Red Fort on Tuesday afternoon were seen placing a flag on the top of a dome.
A protestor hoisted a flag from the ramparts of the Red Fort, said a police official.
One farmer has died after a tractor overturned during the parade. The farmers have claimed that he was shot.
Thousands of farmers protesting against the three farm laws began their first of a kind tractor parade in the national capital, much before the time they were granted permission by Delhi Police for the event.
Delhi’s Mukarba Chowk, security personnel used tear gas on groups of farmers as they tried to break barricades and cemented barriers with tractors at Delhi’s Mukarba Chowk.
While farmers’ unions assured the Delhi Police that their tractor parade would only start after the official Republic Day concludes, farmers, camping at Singhu, Tikri and Ghazipur started marching into the national capital on their tractors.
Security personnel tried to convince farmers to stick to the decided plan, but they did not relent and forced their way into the city.
Tractors bearing flags were seen, along with men and women dancing on dhols, and locals on both sides of the road showering petals on cavalcades.
Farmers also held their tractor parade in other parts of the country as they intensified their agitation against the three contentious farm laws.