am i going to face any interview before receiving visa?

Yes, to apply for the China visa from the China Ebassy in Nigeria, the applicant (or someone on behalf) shall come to the Embassy for appointment of interview first on Tuesday or Thursday (3pm-5pm, except public holidays), with complete visa application documents as required. Then on the appointed date, the applicant himself (except holders of diplomatic and official passports) should come to the Embassy for interview. Different questions may be asked by the officres of the embassy. However, just some simple questions about your personal information.