Yes, you can use a single document for proof of identity and proof of address. ​​Officially valid documents (OVDs) for KYC purpose include: Aadhaar Card, Passport, NEGRA card driving licence, and voters’ ID card serves as both proof of identity and proof of address. However, PAN card will serve as only proof of identity.  Furthermore, to make the process easy, information such as personal details like name, address, age, gender, etc., and photographs made available from UIDAI as a result of e-KYC process can also be considered as an ‘Officially Valid Document’.