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JEE Main Unofficial Answer Key 21 January 2026 LIVE UpdatesJEE Main Unofficial Answer Key 21 January 2026 LIVE Updates: Today is the first day of the JEE Main Session 1 exam 2026. The shift 1 exam has already ended at 12 PM, and now, our CollegeDekho team is trying to connect to the test takers and collecting the memory-based questions. Next, our subject matter expert will analyse the paper and add the unofficial answers to the same. Along with this, candidates can also access subject-wise PDFs here, which will be released by the coaching institutes. This will enable candidates appearing for the JEE Main exam on 21 January to stay connected with this live blog and find the correct answers to the questions. It will, in turn, help them to assess their performance level before releasing the results.
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| JEE Main Question Paper 2026 January 21: Memory-based questions Physics, Chemistry, and Mathematics | JEE Main Predicted Percentile Score January 2026 Session 1 Live Updates |
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JEE Main Unofficial Answer Key 21 January 2026 Shift 1 by CollegeDekho
Check out the JEE Main 21 January shift 1 subject-wise questions and their correct answers here:Mathematics:
| Questions | Answers |
|---|---|
1.
 | 4 |
2.
 | 11 |
3.
 | 2/3 |
4.
 |  |
| 5. The sum of roots of the equation lx-1l 2 -5lx-1l+6=0 is | 4 |
6.
 | 28√3 (Not given as an option) |
| 7. Consider a set S={a,b,c,d}. Then number of reflexive as well as symmetric relations from S------> S are | 64 |
Physics:
| Questions | Answers |
|---|---|
| 1. A rod of mass m and length l is attached to two ideal strings. Find tension in the left string just after the right string is cut | mg/4 |
2. Which logic gate is given in the figure?
 | NAND gate |
3.
 | ML -1 T -4 |
4. Find the heat produced in the external circuit (AB) in one second.
 | (21X15)/16 (Not given as an option) |
Chemistry:
| Questions | Answers |
|---|---|
1.
 Find A |  |
2.
 | 8 |
| 3. In 'S' estimation 0.7 g of an organic compound gives 1 g BaSO 4 in Carius method. What is the % of 'S' in the compound? | 19.61 |
4. Which one among the following resonating structures is not correct?
 | Option A |
|
5. Statement A: but-2-e show O.I.
Statement B: Propanol & Propanone are F.G.I. Statement C: Pentane & 2,2- Dimethyl Propane are C.I correctly statement | Only B and C |
6.
 % of N in E= ? | 20 |
JEE Main Unofficial Answer Key 21 January 2026 Shift 1 by Coaching Institutes
Candidates can find out the coaching institute-wise, subject-wise JEE Main Unofficial answer key for January 21 shift 1 here in the following table:
Name of the Coaching Institute | PDF Links |
|---|---|
Vedantu | To be updated once available |
Resonance | To be updated once available |
Aakash | To be updated once available |
Narayana College | To be updated once available |
Sri Chaitanya | To be updated once available |
Reliable Kota | To be updated once available |
MathonGo | To be updated once available |
The candidates will find out the day-wise and shift-wise JEE Main Session 1 exam analysis, released by the CollegeDekho subject matter experts and several coaching institutes. For getting the latest updates regarding Day 1 analysis, stay connected with this live blog.
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JEE Main Difficulty Level Analysis 2026 January 21: CollegeDekho difficulty level rating based on memory-based questions
JEE Main Unofficial Answer Key 21 January 2026 LIVE Updates
01 20 PM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: Expected Marks for 98.7 Percentile
Difficulty Level of the Paper Expected Marks Easy 179.8+ Moderate 168.5+ Difficult 145.2+ 01 00 PM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: Expected Rank for 98.4 Percentile
Our CollegeDekho expert, Supreeta Roy, who has 5+ years of experience inpercentile va rank analysis, assumes that the candidates with a 98.4 percentile score will secure 24000 or less in the JEE Main Session 1 exam. With this rank, the candidates can take admission to any of the following NITs, such as:
- NIT Trichy
- NIT Surathkal
- NIT Warangal
- NIT Calicut
- NIT Rourkela
- MNNIT Allahabad
- MNIT Jaipur
- VNIT Nagpur
- NIT Kurushetra
12 45 PM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: Expected Marks for 99.2 Percentile
Difficulty Level of Paper Expected Marks Easy 169+ Moderate 157.5+ Difficult 134.6+ 12 30 PM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: Admission Probabilities with 98.2 Percentile
NIT Category High Probability Branches Moderate Probability Branches Top Tier such as NIT Trichy, NIT Surathkal, NIT Warangal Mechanical, Civil, Chemical EEE, ECE Mid-Tier, such as NIT Jamshedpur, NIT Silchar, NIT Durgapur ECE, EEE, and Mechanical CSE (Possibly in later rounds) 12 15 PM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: What is the expected score for 98.2 Percentile?
To obtain a 98.2+ percentile, the candidates should get atleast 169 to 135 marks in the JEE Main Session 1 exam, if the paper is easy or difficult, respectively. The analysis has been made based on the previous years' trends.
12 00 PM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: Shift 1 Exam Over
JEE Main 21 January shift 1 exam 2026 is over. Soon, the test takers will be connected, and candidates will get to know their feedback. Along with it, the shift 1 unofficial answer keys for the subjects will be added.
11 45 AM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: Marking Scheme
- Candidates will get 4 marks for every correctly marked answer
- 1 mark will be deducted for every incorrectly marked answer
- No mark will be deducted for the unanswered questions
Therefore, candidates' total score= [4X(Number of correct answers)- 1X (Number of incorrect answers)]
11 30 AM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: When to be released official answer key?
NTA has not yet declared the official date of releasing the JEE Main session 1 answer key. Tentatively, it will be released after 3 to 5 days of the last date of the Session 1 exam.
11 14 AM IST - 21 Jan'26
JEE Main Unofficial Answer Key 21 January 2026: When to be released?
The JEE Main 21 January shift 1 exam will end in an hour. After that, the CollegeDekho subject matter expert will release the shift 1 memory-based answers, and the same will be updated here. Till then, the candidates can find out other relevant information related to the JEE Main Session 1 exam here.
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