Civil Servant (IAS/PCS)

Dear Mini Sharma,
IAS is a highly competitive civil service exam, Details such as eligibility, max and mini age, application procedure syllabus.I'm providing you a link over there you can check all these details.
http://www.civilserviceindia.com/civil-services-eligibility.html
All the very best

It doesn't really matter. Be a graduat in any field first, then clear UPSC exam

This is UGC Approved University.

Hi Aditya,
Kindly refer the link below:
http://goo.gl/eJgH2g
Hope this information helps. Please feel free to revert.
Wish you luck.

Usually, IAS is the more preferred cadre. Rarely, candidates prefer IFS over IAS but it does happen.
IAS gives you greater opportunity to have an impact on the lives of citizens of the country and definitely provides you with more power.
IFS, while giving you an opportunity to travel, is more like a PR person. You need to attend diplomatic functions, attend to ministers and officials visiting the country and send updates apart from the consular tasks. The power to influence the citizen's life is much limited as compared to an IAS officer. However, it is good if you are posted in an important country or posted in MEA.

Please visit the following link :
http://www.recruitmentinboxx.com/how-to-become-ias-officer/7441/

Please visit the following link :
http://entrance-exam.net/customs-officer-how-to-become-a-customs-officer/

Indian Forest Service (IFS) Examination is conducted by the UPSC. In this exam the age limit 21-30 Years on 1st July of the year of examination and qualification required Bachelor's degree with at least one of the subjects namely, Animal Husbandry & Veterinary Science, Botany, Chemistry, Geology, Mathematics, Physics, Statistics and Zoology or a Bachelor's degree in Agriculture or Forestry or Engineering of a recognised university or equivalent. more details http://upsc.gov.in/general/ifs.htm