While I was create my SSC GD account I was fill out my first step and I have my login id . I lost my page how can I fill up my more information

These include features such as birthmarks, moles, body piercings, tattoos, and scars. Body marks can be characteristic of an individual and can be used to support an identification , in conjunction with medical or police records and with identification given by family members.

visible identification marks', it generally means, moles, birthmarks, scars etc. The location of these would be on your face, neck, arms & legs.

Identification mark means birth marks 

identification mark means any physical mark on your body which can distinguish you from others it may be mole scar mark etc