Career

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

First IAS means indian administrative service and IPS means indian police service. In both exam conducted by the UPSC. For the ips post the physical fitness required but in IAS physical fitness is not required.

in which stream?

Please visit the following link :
http://study.com/how_to_become_a_veterinarian.html