To mark his initial 100 days as mayor, Zohran Mamdani hosted a grand celebration complete with a newly launched website designed to showcase his “achievements” throughout the city. However, this comes amid criticism for not fulfilling several campaign promises.

The event was highlighted by a speech at the Knockdown Center in Queens, which accommodates 3,200 guests. During his address, Mamdani reiterated his commitment to leading New York as a dedicated socialist. The evening featured a somewhat awkward display—a pop-up museum glorifying his brief tenure as mayor.

“On that chilly January day, I addressed over eight and a half million New Yorkers with a promise: ‘We will govern with confidence and without apology for our beliefs,'” Mamdani declared in his speech, as per excerpts reviewed by The Post.

He further emphasized his stance by stating, “I was elected as a democratic socialist, and I will govern as a democratic socialist. For the past 102 days, we have stayed true to that vision.”

Among the accomplishments Mamdani plans to highlight is his administration’s focus on infrastructure, particularly the numerous potholes addressed since he took office.

“By the end of this year, the Department of Transportation is set to repave 1,150 lane miles of our streets,” Mamdani asserted. “On the sixth day, we tackled the bump at the base of the Williamsburg Bridge—that was pothole politics in action,” his remarks continued.

“If government can’t do the small things, how could you ever trust it to do the big ones?” the mayor’s remarks noted. “How can we promise to transform our city if we can’t pave your street?”

Other accomplishments he listed included his pilot program for city-run day care, a proposal to get rid of scaffolding sheds, along with modifications to make sewer drains more effective.

The mayor’s party even had a “100 days museum,” which featured a kid-sized podium from his day care announcement, and leftovers from the Taco Bell wrapper and drink he devoured during a March Q&A he gave about fast food worker initiatives.

And the soaring rhetoric that helped propel the 34-year-old to office was on full display at the Sunday party.

“Some said that once the hard work began, we would forget the movement of working people that rewrote what was possible in this city,” the mayor’s remarks said. “Others warned that the left could only debate but could never deliver. Socialists might be able to win a campaign, they said, but we could never advance an agenda. Far more wanted to believe — but didn’t know how.

“We hold a mighty responsibility in our hands,” he continued. “It is not just the responsibility of governing with honesty and integrity or delivering relentless improvement — it is to demonstrate that government can fix problems. To prove that government can be worthy of the people it serves.”

Less prominent, however, were the numerous sweeping campaign promises Mamdani failed to follow through on in his first 100 days.

Among them was his vow to halt his predecessor Eric Adams’ initiative to clear homeless encampments and let vagrants keep living in dangerous squalor if they wanted — but he did away with that plan after a series of brutal winter storms led to freezing deaths in encampments.

Another shortcoming included his “Department of Community Safety,” which was to have social workers responding to non-violent 911 calls instead of police at the price of about $1.1 billion in funding.

Instead, the much-hyped program has been languishing with a budget of $260 million and just two staffers.

Mamdani also proclaimed during his campaign that he would dedicate .5% of the city budget to libraries — but brazenly abandoned that promise, and instead slashed funding by $30 million.

Nevertheless, Sunday’s party was just one of several celebrations of his first 100 days, which were marked on Friday.

Mamdani appeared alongside the nation’s socialist-in-chief — Vermont Sen. Bernie Sanders — at a union rally Sunday afternoon ahead of the 100-days bash.

He even launched an interactive map of the city tracking dozens of events from his first hundred days, complete with numerous photos of the mayor smiling with happy children and New Yorkers.

And it all comes just days after Mamdani scored an approval rating of just 48% in a Marist College poll — compared to the 61% Mayor Adams got during his first 100 days.

“This whole thing is just massive insecurity about how little they’ve actually accomplished,” an Adams administration insider told The Post. “And how much his poll numbers have dropped.”

This is a developing story.