Upload with the application

Live photograph captured by the application module (no pre-existing photo, no cap/spectacles) (p.18, paras 9.4-9.5)
Scanned signature, JPEG/JPG, 10-20 KB, about 6.0 cm x 2.0 cm (p.18, para 9.6)
Certificate of Disability (Annexure-I/IA/XII-XIII) for PwBD reservation or scribe (p.19, para 9.7)
If not using Aadhaar authentication at OTR: proof of name, proof of date of birth, proof of address, photograph, proof of gender (p.49, Annexure-III para d)

SSC CGL document checklist