Online applications are invited from Indian nationals for direct recruitment to the post of Security Assistant (Executive) in the following Subsidiary Intelligence Bureaux, Ministry of Home Affairs, Govt. of India. The Intelligence Bureau(IB) is an Intelligence agency of India for internal issues. it works under the minister of Home affairs. IB do recruitments for many posts!! Security Assistant (Executive) Exam will be completed in three tiers–Tier-1,Tier-2 and Tier-3. Tier-2 will be of qualifying nature and selection will be made on the basis of marks obtained in Tier-1 and Tier-3.