STS Sindh Testing Service Guide 2026: How to Apply Online
Updated on August 7, 2026
STS Sindh Testing Service — also called SIBA Testing Service — is the testing wing operated with Sukkur IBA University that conducts screening tests for Sindh government recruitments, including teaching posts (PST, JEST), Sindh Police, and department jobs. You apply online through the official website sts.net.pk and the STS candidate portal (apply.sts.net.pk): register with your CNIC and mobile number, fill the form, pay the fee through the prescribed bank challan, and download your roll number slip before the test. This guide explains the complete STS apply process, fee, test pattern, and the 40% passing rule in simple English.
STS Sindh Testing Service 2026 Overview
STS is the testing service run with Sukkur IBA University (SIBA) that the Government of Sindh uses for merit-based screening of candidates for government posts. When a Sindh department announces jobs “through STS” or “through IBA testing”, candidates register on the STS portal, appear in the MCQs screening test, and the passing candidates move to the department’s next stage (interview by the Departmental Selection Committee).
Two rules make STS very important for Sindh job seekers: the screening test passing marks are 40%, and the test result remains valid for three years (the Sindh government has also extended validity of earlier STS results — for example, validity extended until 30 June 2026 in recent notifications — latest notification mein confirm karein). STS scores are also used by the new Sindh Job Portal (sjp.gos.pk) for BPS-05 to BPS-15 recruitments. All STS-based announcements are listed with last dates in our Govt Jobs section.
Eligibility for STS Tests
Domicile: Sindh domicile — most STS-conducted recruitments are open only to candidates from districts of Sindh
Education: As per the post’s advertisement (Matric to Master’s; teaching posts need the qualifications notified by the Education Department)
Visit the official website sts.net.pk and open the announcement/advertisement of the post you want to apply for.
Go to the STS candidate portal (apply.sts.net.pk) and register with your CNIC number, mobile number, email, and a password. If you already have an account (for example from PST/JEST applications), just log in with the same account.
Select your post under “Apply Online” and fill the application form with accurate personal and educational details.
Download the prescribed STS bank challan for your advertisement, print it, and deposit the fee at any branch of the bank allocated in the advertisement.
Upload your photo, paid challan proof, and documents as required by the portal.
Submit the form before the closing date and save your application ID/tracking number.
Before the test, log in to the portal, enter your Application ID and CNIC, and download your roll number slip.
STS Application Fee & Payment Method
The STS application fee is mentioned in each advertisement and is deposited on the prescribed STS bank challan at the bank allocated for that advertisement. If you apply for more than one post, you must submit a separate challan for each post. Fee amounts change from advertisement to advertisement, is liye exact fee hamesha latest advertisement mein confirm karein — website par challan bhi usi advertisement ka use karein.
Prescribed STS challan at the allocated bank branch
Multiple posts
Separate challan and application for each post
Passing marks
40% in the screening test
Result validity
3 years (extensions notified by Sindh Govt — latest notification mein confirm karein)
STS Test Pattern 2026
The STS screening test is an MCQs-based paper. A common STS pattern includes an English portion (around 20 MCQs covering comprehension, synonyms, antonyms, error correction, prepositions, voice and narration, and spellings), plus General Knowledge, Pakistan Studies, Islamic Studies, basic mathematics/analytical questions, and subject-related MCQs for the post. The exact distribution is announced with each advertisement, so download the official syllabus of your post. The English and GK sections can be prepared quickly with our FPSC, PPSC & NTS Test Preparation guide.
STS Roll Number Slip Download
The STS roll number slip is downloaded from the candidate portal — log in at apply.sts.net.pk, enter your Application ID and CNIC number, and download the slip. The slip shows your test date, time, and center. Slips are usually issued in the weeks before the test, so check your portal account and SMS regularly. On test day, bring your printed slip, original CNIC, and paid challan/fee receipt.
Common Mistakes to Avoid
Creating a new account when you already have one — use your old SIBA/STS account for new applications.
Depositing the fee on an old or wrong challan — always use the current advertisement’s prescribed challan.
Applying for multiple posts with a single challan — each post needs its own challan.
Entering a wrong mobile number and missing OTP/SMS updates.
Missing the 40% target due to weak English/GK preparation.
Reaching interviews without a clean CV — build one free with our CV Maker.
Khulasa: STS Sindh Testing Service Ka Nichor
STS Sindh Testing Service Sukkur IBA ke sath mil kar Sindh ki bharti ke screening tests conduct karti hai. STS Sindh Testing Service ka result aam tor par teen saal tak valid rehta hai aur 40% passing marks zaroori hote hain. Apply sirf sts.net.pk se karein aur challan ki copy test tak sambhal kar rakhein.
STS is the testing service operated with Sukkur IBA University that conducts merit-based screening tests for Sindh government recruitments, including teachers (PST, JEST), Sindh Police, and department posts. Its official website is sts.net.pk and the candidate portal is apply.sts.net.pk.
What are the passing marks in the STS test?
The screening test passing marks are 40%. Candidates who score 40% or above qualify the screening stage and become eligible for the department’s next stage, such as interviews conducted by the Departmental Selection Committee under Sindh government rules.
How long is the STS test result valid?
The STS screening test result is valid for three years. The Sindh government has also issued notifications extending the validity of earlier STS results (for example, up to 30 June 2026 in recent updates), so always confirm the current validity from the latest official notification.
How do I download my STS roll number slip?
Log in to the STS candidate portal at apply.sts.net.pk, enter your Application ID and CNIC number, and download your slip. It shows your test date, time, and center. Print it and bring it with your original CNIC and fee receipt on test day.
How much is the STS application fee?
The fee is different for every advertisement and is deposited on the prescribed STS challan at the allocated bank. If you apply for more than one post, a separate challan is required for each post. Always confirm the exact amount from the latest advertisement.
Is the STS test only for Sindh candidates?
Mostly yes — STS conducts screening for Sindh government posts, and advertisements typically require Sindh domicile. Rural/urban and other quotas of the Sindh government also apply, so check your post’s advertisement to see which quota and districts are eligible.
Final advice: STS is now the main gateway to Sindh government jobs, and its score feeds directly into the Sindh Job Portal system. Register once at sts.net.pk, keep your account details safe, target well above 40% in the screening test, and keep your documents attested and ready.
