hello aspirant,

educational criteria for the same is-

Candidates applying for Inspector and Sub-Inspector posts through NIA SI Recruitment 2020 must possess a Bachelor's Degree/Graduation (any discipline) from a recognised University/Institution with relevant years of work experience in handling investigation of criminal cases/intelligence work or IT operations or training in counter terrorism as detailed in the advertisement.

Candidates must also be holding analogous posts on regular basis in the parent cadre or department.

Candidates applying for Inspector and Sub-Inspector posts through NIA SI Recruitment 2020 must fill the application form in a prescribed format attached with advertisement, and send the same along with copies of relevant supporting documents/testimonials to  to SP before the last date of submitting the application

hope that helps