Never shoot on night mode ,it boost ISO which further ruin picture quality and details.
For this you have to go to pro mode of your camera app.
Go to ISO and set as low between 200 to 250.
Shutter speed to slow example 1/10
Keep the light source close to face . Make sure subject don’t move it will avoid shake and blur and
here you go for the perfect karwa chauth photo this year.
