Purple dots in my pictures and camera

It appear that you have some failed pixels in the camera's sensor. I have something similar but for me it's a whole string of bad pixels in a row:

Mine are much harder to see than yours as the screenshot above is highly enlarged so I'll live with it unless it gets worse.

Yours, however, is much worse so I would make an appointment at the nearest Apple Genius Bar for a free diagnosis of the camera and lens. Then you'll know where to go from there.

Are the spots in every photo and in the same place? Have you made sure the lens is clean? I assume the iPhone is under warranty, right?

If yes to all then I'd take it up with Apple's Customer Support before taking it into the nearest Genius bar.

In the meantime you can remove the spots with the Retouch tool:

I went to service center but they said it will not get covered under warranty as it’s laser damage and not manufacturing defect. I don’t know when laser damage happened as I don’t go to club or concert

i am also seeing two lines now

After further complaining they are asking me to send mobile to Bangalore for further investigation

so that’s pending as they will keep the mobile for 10-12 days with no surety of repair

I have iPhone 15 and I am also seeing this.

Did you get any help from the Apple Store can I get the update of the issue because I also encounter the same problem for my iPhone 13