Someone took selfie with me in public, what should I be vigilant of?

I went to Puri today, and while going around the Jagannath temple, I got separated from my family. My mom went to the information center and announced my name. Since I wasn't aware of the routes, I was asking around the police to go to the IC asap. Midway, a young guy stopped and asked me where I'm going within the closest barricades itself, he was wearing an ID card and all. He talked to the police and everything, and they asked him to take me to the center. Just before reaching the IC, he suddenly took selfies with me. One of them is also from an angle that seems like I took the selfie. I kept asking him why he's taking my photos, he kept saying "sister this is normal, dw sister, sister this is process." I was very nervous and couldn't think fast enough. My mind was blank. He took me there, where he joined with his friend and left. I reunited with my family. But now I got to know he was actually a college student and not a part of the temple committee or volunteers. Should I file an FIR? I have no details of the guy. Nor does he have any details of me. He doesn't know my name or contact number. But I'm worried because it all feels so off. What should I be vigilant about? What should I do?