This IAS isI most important to settle down or having a jeal to serve to the mother Country All India Services. IAS officers serve as the permanent bureaucracy of the Executive Branch of the Government of India. The elective bodies are taken by the government where they are implemented by the Indian Administrative Service and allied services. To become an IAS officer, you must clear the civil services exam conducted by the UPSC. This is one of the toughest exams in India, although not impossible to crack. The civil services exam  has three stages, each stage eliminating candidates who do not clear it:

1. Prelims – Two MCQ papers (General Studies, CSAT)
2. Mains – Nine theory papers (Essay, Two Language, Four General Studies, and Two Optional Papers)
3. Interview – Personality Test

for more information follow the below link :

https://competition.careers360.com/articles/upsc-civil-services-answer-key-chanakya-ias-academy