The Indian Administrative Service (IAS), formerly known as Imperial Civil Service (ICS), is undoubtedly the most prestigious administrative post under Government of India and therefore remains a dream career option for many aspirants. In fact, hierarchy wise, IAS is considered as the highest administrative post among all the 24 civil services (that include IAS, IPS, IFS (Indian Foreign Service), IFS (Indian Forest Service), IP & TAFS, IAAS, IRS, IDAS, CMSE, IRTS and IRAS among others).