NIELIT Scientist 'B' Exam Analysis 2021

By Himanshu Bajpai|Updated : December 6th, 2021

NIELIT Scientist 'B' Exam Analysis 2021: National Institute of Electronics & Information Technology (NIELIT) released the notification of Scientist-'B' and Scientific/Technical Assistant 'A'. Earlier this year applications for this vacancy began from 10th June 2021 ( Re-Advertised). There were a total number of 81 posts in NIELIT 2021 Recruitment for which Byju's Exam Prep for GATE Computer Science & Electronics Engineering has conducted a complete paper analysis. This article also provides the aspirants with detailed solutions for NIELIT Exam 2021.

The NIELIT Paper analysis 2021 is done by the experts who minutely go through the questions and give in-depth analysis so that candidates can use this analysis to analyze their performance in the exam. The overall difficulty of this exam was moderately difficult. In the article, we will provide you with the detailed information about the exam.

Table of Content

The NIELIT 2021 exam was held in two slots as shown in the table below.

Slot PositionTest DayTest TimeReporting Time
Slot 1Scientist Technical Assistant 'A'5th Dec 20219:30 am to 12:30 pm8:00 am
Slot 2Scientist 'B'5th Dec 202102:30 PM to 05:30 PM1:00 pm

NIELIT Scientist 'B' Exam Analysis 2021 : Major Highlights 

The major highlights of the NIELIT 2021 Exam are as follows - 

  • Data Structures and Networks questions were slightly tougher.
  • Operating Structures which is a core subject of Computer Science had easier questions. The questions were on basic concepts like paging, standard theorem etc. No high-level questions were asked from operating systems.
  • Discrete Mathematics had almost a GATE level question. Discrete Mathematics was of moderate difficulty.
  • DBMS comprised of fewer marks and there was one question in DBMS that was exactly the same as GATE previous year question.
  • A lot of questions were asked from Data Structures and Algorithms. Around 15 questions were asked from DS and Algorithms alone.

NIELIT 2021 Scientist 'B' Paper Analysis 2021 (Shift 1)

Complete Subject Wise Analysis of Scientist ' B ' for 2021 exam is shared below in the article, aspirants can also check the difficulty level of various subjects - 

NIELIT 2020 SubjectsDifficulty LevelWeightage in 2021Weightage in 2020Weightage in 2018Weightage in 2017
Compiler Design and Theory of ComputationModerate 292
Cyber Security and Cloud Technology--  300
Computer NetworksModerate  1165
Digital & Analog CommunicationEasy330
Computer OrganisationModerate  345
Operating SystemModerate  654
Digital logicEasy 7146
DBMSModerate  988
Discrete MathModerate   6202
Information Systems and Software EngineeringEasy702
Probability, Statistics and CombinatoricsModerate   222
Data Structure & Programming + OOPsModerate  8716
AlgorithmModerate  1076
Web Technologies /HTML-- 720
Electrical Engineering (Network )-- 0200
Miscellaneous-- 0202
Logical Reasoning--  015022
Verbal Reasoning--  002413
Quantitative and Qualitative abilities-- 019818
Data interpretation --617
CalculusModerate  012 
Linear AlgebraModerate   103 
Total 7412085120

NIELIT Scientist B Paper Analysis 2021: Live YouTube Session 

In these sessions aspirants will get to know the most detailed and thorough analysis of NIELIT Exam 2021, the difficulty level of questions and the new questions that have been asked in the exam.These videos will help the aspirants better understand the difficulty level of the paper and the estimation of Cut-Offs. A must watch the video to answer all your doubts and dilemmas regarding NIELIT Exam 2021, which will help you anticipate your score and plan for the further process.

The difficulty level of NIELIT 2021 Scientist 'B'

  • The overall Difficulty level of NIELET 2021 Scientist B which was Conducted from 02:30 PM to 05:30 PM for Scientist ' B ' was moderately difficult. 

NIELIT 2021 Scientist 'B' Exam 2021: Good Score

  • As per as candidates who had attempted Slot - 2 which was Conducted from 9:30 am to 12:30 pm for Scientist 'B' if a candidate scores (105-112) marks in the paper can find a good score.

Salary for NIELIT Scientist 'B' 

The post wise salary for NIELIT Scientist ‘B’ Group A and Scientific Assistant ‘A' Group B Recruitment 2021 is as follows:


Pay Scale

Scientist ‘B’ Level - 10 ,
Scientific Assistant ' A 'Level - 6 ,

NIELIT Scientist B  (2020 ) Cut off & Expected Cut off 2021

Exams for a total of 288 posts of Scientist B and 207 posts of Technical Assistant A were conducted on the 22nd of November 2020 for which many aspirants have given examination. You can check complete details about NIELIT CS result 2021 that includes  the PDF of the shortlisted candidates list from HERE 

  • NIELIT Scientist B Cut Off Marks 2020-21
CategoryExpected Cut off 2021Total qualified candidatesHighest marksLowest marks
UR 105-1121549112.5077
OBC 105-1101424111.2569.50
SC 105-1101380111.2562.75
ST 75-804517559.50
EWS 105-110 10476.5062
PWD-HH55-60 1958.7543.75
PWD-LD75-80 8576.5058.75
PWD-MD50-55 35137.25
  • NIELIT Scientific Assistant Cut Off Marks 2020-21
CategoryExpected Cut off 2021Total Number of qualified candidatesHighest marksLowest marks
URNA 1716102.2591.00
OBCNA  146796.2585.25
SCNA  115894.0078.50
STNA  35782.5076.25
EWSNA  11190.7582.25
PWD-HHNA  1070.2552.25
PWD-LDNA  9085.0073.75
PWD-MDNA  458.2547.00

NIELIT 2021: Vacancy Details 

The vacancies details for NEILIT exam 2021 are as follows :

DesignationTotal Vacant Posts
Scientific/Technical Assistant - ‘A63


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  • Byju's exam prep has updated Cut off based reviws shared by experts & students where as actual cut off may be different .

  • Nearly 15k candidates have applied for Nielit Exam 2021 .

  • The Difficulty Level of Paper was Difficult as compared to previous year paper .

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