DRDO Senior Technical Assistant Exam Pattern

DRDO Senior Technical Assistant ‘B’ Exam Pattern

Every year DRDO conducts recruitment for the post of Senior Technical Assistant ‘B’, the most paramount and prestigious job to start your career. The entire recruitment process involves an online examination from a centre as allotted by DRDO. All stages of the examination are mandatory. DRDO Senior Technical Assistant ‘B’ exam will held in three Stages :-

On-Line Examination: 

TierMode/Type of
Scope of ExaminationNo of
Duration of
Exam (Min.)
I CBT for Screening Test common to all post-codes : Quantitative ability/aptitude,
General intelligence & Reasoning ability, General awareness,
English language (basic knowledge), General science
150 150 120
II CBT for Provisional
Test specific to subject of post-code 100 100 90


 i) The mode of selection may change depending upon the organizational requirement / Govt. of India policy.
ii) For more details, visit frequently asked questions (FAQs) section on our website.


 Tier-I exam is for screening. The minimum qualifying marks for Tier-I is 40% for UR/OBC candidate and 35% for SC/ST candidates.Candidates will be provisionally shortlisted based on Tier-I examination merit in a ratio of 1:10 (No. of vacancy: No. of shortlisted candidates) provided they secure the minimum qualifying marks in examination. However, this ratio may increase depending upon organizational requirements. The last candidate securing equal marks in the bracket will also be included. These shortlisted candidates will be called for Tier-II examination.


The provisional selection will be based on the merit obtained in Tier-II examination depending upon the post/category/sub-category of the candidate. The minimum qualifying marks for Tier-II is 40% for UR/OBC candidate and 35% for SC/ST candidates.


 A) SC, ST, OBC and PWD candidates, who are selected on their own merit without relaxed standards, will be considered against the unreserved vacancies as per Govt. of India orders.

B) The reserved vacancies will be filled up separately from amongst the eligible SC, ST, OBC, and PWD candidates

RESOLUTION OF TIE CASES FOR TIER-II EXAMINATION: In cases where more than one candidate secure the equal aggregate marks in Tier-II examination, tie cases will be resolved by applying following criteria, one after another, as applicable till the tie is resolved.

(i) Marks obtained in Tier-I examination.

(ii) Date of birth, older candidate placed higher in merit list.

(iii) Alphabetical order in which the names of the candidates appear.


(i) Visually impaired/cerebral palsy, orthopedically handicapped candidates who has a locomotor disability wherein the dominant writing extremity is affected to the extent of slowing down the performance of the candidate (such deficiency to be indicated in the medical certificate submitted by the candidate) will be allowed compensatory time of 20 minutes per hour in the examination. Question papers will not be provided in Braille. Candidates who are availing compensatory time will have to arrange scribe on their own.

 (ii) For visually impaired candidates, there will be no component of maps/graph/diagrams/statistical data in the Question paper.


Candidates will be called for examinations without any detailed scrutiny, therefore, their
admission in examinations are only provisional. Candidates are advised to ensure meeting all eligibility criteria to avoid rejection in future. The original certificates pertaining to EQR and other relevant documents will be examined at the time of document verification. Preliminary document verification will be held after Tier-I examination. The date, time, venue and detailed instructions
will be given on website later. Provisionally shortlisted candidates for Tier-II examination need to produce all the relevant certificates in original at the time of preliminary document verification, failing which the candidature of such candidates will be cancelled. Candidates may be asked at any stage of the recruitment process to produce original documents/certificates for the verification of its authenticity by forensic expert/issuing authority.


 The function of the CEPTAM is to select and nominate the name of suitable candidates to the concerned DRDO lab/estt. on the basis of  availability of vacancies in various DRDO labs/estts. Nomination shall be on the basis of merit of the candidates in the Tier-II examination, outcome of preliminary document verification and preference of posting to stations given by the candidates in their application for further processing of their candidature. Offer of appointment letter will be issued by concerned lab/estt. subject to satisfying all eligibility criteria including antecedents and character. DRDO reserves the right to nominate candidates to any place in India depending upon organisational requirements/constraints

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