Every year, millions of students prepare for and take exams to earn a career in one of the five major civil services are IAS, IPS, IRS, IFS, and IFS. Only a few thousand pupils out of millions of applicants would be able to pass this exam. Among the 23 Civil Services, the Indian Administrative Services (IAS), Indian Police Services (IPS), Indian Revenue Services (IRS), and Indian Foreign Services (IFS) are the most popular (IFS). For detailed information regarding types of civil services. visit the following URL.