Modi was coming out of the Indian Embassy after inaugurating the Vivekanand Centre when he saw a crowd of admirers shouting slogans for him outside the complex.
Instead of sitting in his car, he decided to walk out of the complex and meet the people.
He shook hands with them and gave autographs to some, giving a personal touch to the event.
The Prime Minister also had a chat with two young siblings. He enquired from them about whether they fight with each other and also who wins in that.
Earlier in the day, when Modi visited Sacred Heart University, a few Indians were waiting outside to see him. He obliged them by posing for a selfie with them.