Indian Administrative Service is a job provided by civil services. It is a top-notch job in today's world. It deals with managing the bureaucracy of India. However, clearing the exam is a tough job. IAS involves two exams and one interview round. IAS prelims exam is followed by IAS mains which finally leads to the interview round. Thus, the candidates who clear the interview round are recruited for a training session. After the training session is successfully completed, they are strategically positioned in various posts which is based on the scores in the merit list.
IAS prelims exam is the initial stage for the entry into IAS.
IAS mains syllabus comprises of two main papers, a general paper and CSAT.
These are some of the subjects that are a part of the syllabus, General Science, general mental ability, comprehension, decision making and problem solving, logical analysis, general issues in environmental ecology, economic and social development etc.
CSAT has been a new addition to the syllabus, in 2011. Earlier, there was a paper for optional languages. There was a great variation in marks due to the optional subject therefore it was replaced by CSAT.
CSAT refers to civil service aptitude test. It will be a common exam for all candidates. It contains, speed test and power test.
The speed test checks your accuracy and the power test comprises of high standard questions.
The IAS prelims are followed by IAS mains; one can not appear for IAS mains without clearing IAS prelims.
IAS syllabus has two optional subjects, one general studies paper and one essay.
Syllabus also contains two language paper, one Indian language and other simple English of 10th standard. These two languages test fluency of candidate in his/her mother tongue and also power over English language.
Scores of these two language paper are not added in the final result, however it is important to clear these exams in order to pass the entire stage.
The syllabus for optional subjects include areas like, Botany, Chemistry, Statistics, Medical science, Psychology, Public Administration, International relations, politics, mechanical engineering, physics etc.
After clearing the IAS prelims and IAS mains, you reach the interview round which is equally tough. However, we should bear in mind that there have been toppers in this field, so it is not impossible to clear the exam. One needs to prepare the syllabus well and practice as much as possible.

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