The main function was held in front of Vidhan Bhawan, where Governor Ram Naik took salute from a Army contingent in the presence of Chief Minister Akhilesh Yadav and other dignitaries.
While tableau of Information department highlighted Lucknow-Agra expressway, which is under construction, the tableau of Lucknow Metro and transport department remained the centre of attraction.
School students presented colourful programmes while Army's T-72 tank, Mine Protected Vehicles and missiles were seen with curiosity.
Contingents of police, Home Guards and NCC among others participated in the Republic Day parade held at district headquarters.
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Meanwhile, at a Republic Day function in Harsaon police lines here Ram Gopal Yadav, Rajya Sabha MP and secretary general of Samajwadi party said, terrorism was the biggest challenge for the world and particularly India.
Yadav was the chief guest at Republic Day parade at Harsaon police lines.
Addressing a gathering of police and civilians after taking salute from marching contingents, Yadav said that intentions of our neighbouring country are not just.
"Nearly two decades ago people used to visit Rajpath in large numbers to watch the Republic Day parade but now a days many avoid it fearing harassment due to frisking and several other security checks and it all happened due to escalation in terrorist activities," he said.
Yadav also awarded mementos and certificates to several police and fire brigade officers for their distinguished and meritorious services.