The CSIR-Indian Institute of Toxicology Research (IITR) has released the CSIR IITR MTS Answer Key 2026 for the Multi-Tasking Staff (MTS) posts on 12th September 2026. The Answer Key for these posts has been released on the official website iitr.res.in. The CSIR IITR MTS Exam was held on 12th September 2026.
The Provisional Answer Key is out primarily along with the objection window which is open until 15th September 2026. Candidates who are not satisfied with any of the answers given in the answer key can challenge the incorrect answer by submitting valid proof. Read the article below to know more about the CSIR IITR MTS Answer Key.
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CSIR IITR MTS Answer Key 2026: Overview
The CSIR IITR MTS Answer Key helps the candidates in checking the responses given by them, calculating their scores and guessing their chances of selection in the exam. The details of the answer key can be checked in the table given below.
| Particulars | Details |
|---|---|
| Exam Name | CSIR IITR MTS Written Exam 2026 |
| Recruiting Authority | CSIR-Indian Institute of Toxicology Research (IITR) |
| Post | Multi-Tasking Staff (MTS) |
| Advertisement No. | IITR/1/2026 |
| Exam Date | 12th September 2026 (Saturday) |
| Answer Key | Released on 12th September 2026 |
| Answer Key Type | Tentative |
| Exam Mode | Offline (OMR Based) |
| Total Questions | 150 |
| Maximum Marks | 150 |
| Objection Facility | Available |
| Official Website | iitr.res.in |
CSIR IITR MTS Answer Key 2026 OUT
CSIR IITR MTS Answer Key is out for the Written Examination held for the Multi-Tasking Staff posts advertised vide Advertisement No. IITR/1/2026. The examination was scheduled on 12th September 2026 which included 150 questions for 150 marks. Candidates who appeared in the examination can check the answer key to calculate their scores.
The response sheet helps in guessing the chances of selection in the examination. The CSIR IITR MTS Response Sheet Link is active on the official website or it can also be checked from the direct link given below.
Direct Link to Check CSIR IITR MTS Answer Key 2026
How to Download CSIR IITR MTS Answer Key 2026?
The steps to download CSIR IITR MTS Answer Key 2026 are given below. Candidates can follow these steps to download the response sheet without any difficulties.
- Go to the official website of CSIR-IITR i.e. iitr.res.in.
- On the homepage of the website, find the ‘Recruitment’ Link.
- Click on the link and the recruitment page will open on the screen.
- Find the link for ‘Tentative Answer keys of the Written Exam organised for the Post of Multi-Tasking Staff (MTS)’.
- Click on the link and the answer key will open on the screen.
- Download the PDF and check the responses given by you with the official answers.
- Save the copy of the answer key PDF for future reference.
CSIR IITR MTS Answer Key 2026 Objection Window
The CSIR IITR MTS Answer Key Objection Window link is active on the official website. The objection window is open from 12th September 2026 to 15th September 2026. Candidates who are not satisfied with any of the answers given in the answer key or any of the questions asked in the examination can raise objections against the response sheet on the official website of IITR. The last date to raise objections is 15th September 2026 till 5:30 PM. The objections can be submitted with a valid supporting document as a proof of objecting the responses. Candidates are required to pay a non-refundable amount of fee Rs. 100/- (Rupees One hundred only) per Question through the QR Code available on the objection management portal only. Objections submitted without payment or payment less than Rs. 100/- will not be considered. No requests for refund of the amount paid for raising objections shall be entertained.
How to Raise Objections against CSIR IITR MTS Answer Key 2026?
The steps to raise objections against the CSIR IITR MTS Answer Key 2026 are given below. Candidates can follow the steps to raise objections without any difficulties.
- Open the link https://iitr.res.in/En/Recruitment.aspx and enter your Registered Mobile No., Written Examination Roll No. and Registered E-mail to login.
- Make the payment of Rs. 100/- through the QR Code available.
- Enter Transaction ID generated.
- Upload Payment receipt in the pdf/jpeg/png format.
- Now Select the Question Booklet set i.e. (A, B, C, D).
- Enter question number and objection details with justification or reason.
- Click on ‘Submit Objection’.
How to Calculate Marks using CSIR IITR MTS Answer Key 2026?
The steps to calculate marks using CSIR IITR MTS Answer Key 2026 are given below. Candidates must follow the CSIR IITR MTS Marking Scheme to calculate their marks.
- Count the number of correct answers and give 1 mark for each correct answer.
- Calculate the final score i.e. number of correct answers X 1.
- Candidates must check the official notification for details regarding negative marking, if any.
Details mentioned on CSIR IITR MTS Answer Key 2026
The details mentioned on the CSIR IITR MTS Answer Key are given below. Candidates must check these details carefully and in case of any kind of discrepancy they must immediately contact the exam conducting authority.
- Examination Name
- Exam Date
- Question Paper Set/Series (A, B, C, D)
- Question Number
- Correct Answers
- Objection Submission Instructions
- Objection Fee Details
- Last Date for Objection Submission
CSIR IITR MTS Answer Key 2026: Question Booklet Sets
The tentative answer keys of the Written Examination have been issued for all sets (A, B, C, D) as Annexure-I to the notification. Candidates must select the correct Question Booklet set while raising objections. The answer keys for all four sets are available on the official website.
What after CSIR IITR MTS Answer Key 2026?
After the release of the CSIR IITR MTS Provisional Answer Key 2026, the CSIR IITR MTS final answer key is released. In the final answer key no changes can be made. After the release of the CSIR IITR MTS Final Answer Key, the CSIR IITR MTS Result is released which includes the qualifying status of the aspirants.
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CSIR IITR MTS Answer Key 2026 FAQs
Q. When will the CSIR IITR MTS Answer Key release?
A. The CSIR IITR MTS Answer Key 2026 has been released on 12th September 2026.
Q. Where can I check the CSIR IITR MTS Answer Key?
A. You can check the CSIR IITR MTS Answer Key 2026 on the official website of the CSIR-Indian Institute of Toxicology Research i.e. iitr.res.in.
Q. What is the objection window date for CSIR IITR MTS Answer Key?
A. The objection window of CSIR IITR MTS is open from 12th September to 15th September 2026 till 5:30 PM.
Q. What is the objection fee for CSIR IITR MTS Answer Key?
A. The objection fee is Rs. 100/- (Rupees One hundred only) per Question, which is non-refundable.
Q. When will the CSIR IITR MTS Result 2026 be released?
A. The CSIR IITR MTS Result 2026 will be released soon on the official website.
Q. Is there any negative marking in the CSIR IITR MTS Examination?
A. Candidates must check the official notification for details regarding negative marking in the CSIR IITR MTS Examination.
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