As you want to get the details of difference between UPSC and SSC so here it is for you:

UPSC makes recruitment of the candidates under the Union/Central Govt.

UPSC recruits for gazetted posts.

SSC recruits for the central govt. departments.

SSC recruits for non-gazetted posts.

List of exams of UPSC:

Special Class Railway Apprentices Exam

Combined Defence Services (I) Exam

National Defence Academy & Naval Academy Exam (I)

Civil Services (Preliminary) Exam

Indian Police Service (Limited) Competitive Exam

Engineering Services Exam

Indian Forest Service Exam

Combined Medical Services Exam

CISF (AC) Limited Departmental Examination

National Defence Academy & Naval Academy Exam (II)

Combined Defence Services (II) Exam

Central Police Force (Assistant Commandant) Exam

Civil Services (Main) Exam

Indian Economic Service/Indian Statistical Service Exam


List of exams of SSC:

Stenographer (Grade‘C’&’D’) Examination

Combined Higher Secondary Level Examination

COMBINED GRADUATE LEVEL EXAMINATION

Junior Hindi Translators (in Subordinate Offices) and Hindi

Pradhyapak(Central Hindi Training Institute) and Senior/Junior Translators
in Ministry of Defence Examination

RECRUITMENT OF SUB-INSPECTORS

JUNIOR ENGINEERS (CIVIL, MECHANICAL, ELECTRICAL,QUANTITY
SURVEYING AND CONTRACT) EXAMINATION

LOWER DIVISION GRADE LIMITED DEPARTMENTAL COMPETITIVE
EXAMINATION

UPPER DIVISION GRADE LIMITED DEPARTMENTAL COMPETITIVE EXAMINATION

RECRUITMENT FOR CABINET SECRETARIAT
Recruitment of Constables(GD) in CAPFs and Rifleman (GD) in Assam Rifles