Hello Aspirant,

Hope you are doing well

There are 3 stages in UPSC :-

• Stage I: Preliminary Examination (IAS Prelims) (objective)
• Stage II: Mains Examination (IAS Mains) (written)
• Stage III: UPSC Personality Test (IAS Interview)

In Prelims there are 2 paper :-

• General Studies
• CSAT

Prelims are Objective (MCQ) type.

In Mains there are 9 Paper :-

• 2 Qualifying language paper
• 1 Essay Paper
• 4 General Studies Paper
• 2 Optional paper of same subjects

Mains are Descriptive Type

Hope its help you.

Feel free to ask any query.

All the best for future.