Deputy Field Officer is a non-gazted Group B officer post. The applicant will become a Senior Field Officer which is a gazted Group B officer after putting up some experience as Group B officer. This officer has to collect the information of external intelligence, counter-terrorism and covert operations.
They are supposed to get and analyze the information about foreign governments, corporations and persons, in order to advise Indian foreign policymakers.
The DFO collects the information and hands over to Field officers. The Field officer then hands over the same information to the senior field or desk officers, then to controlling officers who are IPS and to Joint secretary level.
He/She may be posted outside India or within India.
Both male and female candidates are considered for the post.
The job is technical in nature at the same you may have to do some administration works also.
You are posted in the Embassy of India in other countries. Some clandestine operations are involved in this job. The job is a little risky since you have to do some spying in the other countries which may not be legal in that country. Once should have that bent of mind and should be ready to take the required risk. So you please decide based on your nature and desire.