The Indian Statistical Service (abbreviated as ISS) (Hindi: भारतीय सांख्यिकी सेवा) is a civil service under Group A of the Central Civil Services of the executive branch of the Government of India. ISS is a civil service with high degree of proficiency in Statistical methods and applications. With the main mandate of producing quality Official Statistics with better methods and techniques, provide solutions to the data and information needs and interpretation and analysis of statistics, a majority portion of the probationary training programme is to be devoted to acquiring of technical knowledge in the field of official statistics, economics, financial statistics, survey methodology and social etc. The posts are recruited through UPSC examination. The minimum eligibility criterion is Bachelor's degree with Statistics or Mathematical Statistics or Applied Statistics as one of the subject.