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Indian Administrative Service is one of the prestigious services among the 24 services like IPS, IFS etc for the which the UPSC conduct Civil Services Examination for selecting the candidates.
UPSC (Union Public Service Commission) is the government agency responsible for selecting the right candidates for this service. Every year only around 1000 candidates are selected for all the 24 services combined. The number of candidates who applied for IAS exam was nearly 9 lakh in 2014, out of which around 4.5 lakh candidates appeared on the exam day.
How to Clear Civil Services Exam?
To clear IAS Exam, aspirants are advised to have a long-term strategy. Though most of the serious candidates start preparation 9-12 months before the exam date, there are candidates who successfully achieve top ranks with only a few months of dedicated study. A disciplined and focused mind with a passion for learning and reading is the basic trait of all successful candidates. The IAS exam is more a test of the analytic and presentation skills along with knowledge gained by the candidate rather than a test which checks candidate's mathematical or verbal skills.
For clearing IAS, we feel two factors are essential:
Right Guidance – for prelims and mains: You can join any coaching institute (Chanakya IAS Academy, Sriram IAS or any other) or do self study.
Right Study Materials and Books.
Exam Eligibility Criteria: Number of attempts permitted/Age Limits
A good understanding of UPSC syllabus and exam pattern is the first step for all freshers. Also, understand the Eligibility criteria for writing UPSC CSE exam. The minimum age to appear for IAS Exam is 21 years. Upper age limit for General category is 32 years while that of OBC is 35 years. Number of attempts permissible for a general category candidate in UPSC CSE is 6.

Hi Pegah,
Follwoing is the educational requirement for teaching in international schools:
International Schools are looking for teachers who hold a Bachelor's degree or higher in their subject area. Therefore, if you are planning to teach Social Studies at the middle or high school level, you should have a degree in history, political science, anthropology, sociology or any of the other social sciences. The same applies for secondary teachers of English, Mathematics, Science and other subjects. Elementary school teachers should hold a degree in education, childhood development, or other related subjects.
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