Income Tax officer recruitment exam is conducted by SSC.
The recruitment process has 2 stages
Preliminary Exam
Main Exam

Pre Exam Pattern:
General Intelligence
General Awareness
Quantitative Aptitude
English Comprehension

Main Exam Pattern:
Quantitative Ability
English Language & Comprehension

Eligibility Details:
Candidate should be of 18 years of age and below 25 years of age.
There is relaxation for upper limit age for SC/ST candidates.
Educational Qualification For Income Tax Central Excise Inspectors Examination

A contender must hold a graduation degree of a recognized University, or equal.
Physical Standards required for Income Tax Central Excise Inspectors Examination

For the posts of Inspector of Central Excise and Preventive Officer, candidates will have to satisfy the following minimum physical standards, failing which they will not be eligible for appointment.
1. Inspector of Central Excise/Preventive Officer (Male candidates)
Height - 157.5 cms
Chest - 81 cms (fully expanded with a minimum expansion of 5 cms (Relaxable by 5 cms in the case of Garhwalis, Assamese, Gorkhas, Kumaon Region, Nagaland Tribes and members of ST)
Physical Test: Walking - 1600 metres in 15 minutes, Cycling - 8 Km in 30 minutes