i want to prepare IAS ,but i don't know details about that,pls tel me about IAS and detais about fees and timing

for IAS exam UPSC conduct Civil services examination each year . There are two phase in this exam preliminary and then mains . and after this you will have to face Interview and after this a merit list is prepared . According to merit you selected in IAS , IPS , IFS , IRS etc . IAS examination is tr