Dear Arvind,
The eligibity criteria for IAS is: candidate needs to have a bachelor's degree from any recognized university and age limit is between 21 to 32 years.
The syllabus of UPSC Civil Services exam is divided into 3 categories: Preliminary, mains and interview.
Preliminary includes current affairs, mains is designed to judge a candidate's espertise in specialised subject. The candidates who clear the preliminary and mains can appear for the interview.
Preliminary Examination (400 Marks) -
The Prelims consists of two papers of 200 marks each
Both the question papers are of the objective type (multiple choice questions) of two hours each
The question papers will be set in both Hindi and English. However, questions related to English Language Comprehension skills would be provided only in English.
Blind candidates would be allowed an extra 20 minutes of time for each paper.
Main Examination (2075 Marks)
Candidates who qualify Preliminary exam are called for Main exam and on the basis of marks secured in Main exam, they will be called for Interview.
The total marks of Main exam and Interview sum up to produce final result.
For further details you can visit the official website: http://www.upsc.gov.in/
Hope it helps.
Good Luck.
The change from a student to an ias demands hardwork and patience .
The following given link can help you a lot https://m.wikihow.com/Prepare-for-IAS-in-India
Go through it once
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