In this guide
It is easy to treat the preference list as a formality: tick the options in the order they appear and move on. That is a mistake you live with for years. Your preferences decide which job you get, where you work, and in part how your career grows. Once a post is allotted, you are usually not considered for anything lower on your list.
The good news is that preference-filling is not a gamble. The allocation rule is simple and mechanical. Once you understand it, the right strategy follows directly.
How allocation works
- After Tier 2, candidates are ranked by merit (Tier 2 Session I, Sections I and II).
- SSC goes down the merit list in order. Each candidate is given their highest preference that still has a vacancy in their category and for which they are eligible, including having passed the skill test that post needs.
- If none of a candidate's preferences is still available, they are not allotted a post in that round.
Two things follow. First, listing a post higher never hurts you. A candidate below you can't take your choice, because you are processed first. Second, your list is used strictly in order. If you would be happier in your third choice than your first, your list is wrong.
A worked example
Suppose there are three vacancies, all in the same category: one DEO post, one LDC post in Department X, and one LDC post in Department Y. Three candidates, ranked 1 to 3, fill these lists:
| Rank | Candidate | Preference order | Skill test passed |
|---|---|---|---|
| 1 | Candidate A | LDC-X, then DEO | Typing |
| 2 | Candidate B | DEO, then LDC-X, then LDC-Y | Typing and DEST |
| 3 | Candidate C | LDC-X, then LDC-Y | Typing |
Now allocate in rank order:
- Candidate A asks for LDC-X first. It is free, so A gets LDC-X.
- Candidate B asks for DEO first. It is free and B has passed the DEST, so B gets DEO.
- Candidate C asks for LDC-X, which is taken, and then LDC-Y, which is free. C gets LDC-Y.
Now change one fact: Candidate B has not passed the DEST. B is not eligible for the DEO post, so the next preference, LDC-X, is checked. It is taken by A, so B gets LDC-Y. Candidate C then finds both LDC posts gone and gets nothing, while the DEO post stays unfilled in this round.
Notice what decided each outcome. It was rank, list order, eligibility and what was left, and nothing else. The skill test result mattered to B, and through B, to C.
LDC/JSA or DEO?
| Factor | LDC / JSA | DEO |
|---|---|---|
| Pay level | Level 2 (₹19,900 start) | Level 4 or 5 (₹25,500 or ₹29,200 start) |
| Skill test | Typing: 35 wpm English or 30 wpm Hindi | Data Entry Speed Test: 8,000 key depressions an hour (15,000 for a few posts) |
| Extra eligibility | Class 12 | Class 12; a few DEO posts need Science with Maths |
| Work | Files, letters, records, establishment work | Data entry, verification, reports |
| Growth | Clerical cadre ladder and departmental exams | Varies more by department |
If you meet the DEO eligibility and are confident of the DEST speed, DEO posts start at a higher pay level. If your typing is stronger in Hindi, or you are not reliably above the DEST standard, LDC/JSA posts may be more realistic. Many candidates list both, in their true order. The posts and salary guide works out gross pay at each level.
Department and location
Pay level is only one input. Location affects your money and your life just as much:
- HRA depends on the city class. It is 30% of basic in X cities, 20% in Y and 10% in Z at present rates. For a Level 2 post, the gap between an X city and a Z city is 20% of ₹19,900, which is ₹3,980 a month in HRA alone, before the higher transport allowance. The cost of living in the bigger city is higher too, so weigh both.
- Some departments are concentrated in Delhi, while others have regional offices across states.
- Transfer policy differs by department. Some offices rarely move clerical staff; others transfer between regions.
- Promotion speed differs by cadre. It depends on the cadre's size and vacancies, not on the exam.
Mistakes that cost candidates their post
| Mistake | What happens | Fix |
|---|---|---|
| Listing posts you haven't prepared the skill test for | You're ineligible when your rank comes, and a lower choice goes to you | Prepare the skill test for every post you list |
| Listing a post you would not accept | If allotted, you usually lose the chance of the ones below it | Leave it off |
| Copying a friend's list | Their priorities are not yours | Rank by your own needs |
| Putting a "safe" post above a wanted one | You get the safe post even when your rank was good enough for the wanted one | List in true order; a higher listing never harms you |
| Ignoring location | A posting far from home you can't sustain | Decide your location limits before you start |
A step-by-step method
- List every post and department open in your notification, with its pay level and any extra requirement.
- Strike out any post you are not eligible for, for example DEO posts that need Science with Maths if you don't have it.
- Strike out any post you would refuse if allotted.
- Score the rest from 1 to 5 on the factors that matter to you: pay, city, work, transfer, family needs.
- Sort by score, then read the list top to bottom and ask, for each pair: "If I could have either, which would I take?" Adjust.
- Sleep on it and recheck the order a day later before you submit.
Finding out what the jobs are like
- Read the notification's post table carefully: department, pay level, special conditions.
- Visit department websites to see what their offices do and where they are.
- Talk to people already working in central government offices if you can. Ask about daily work, working hours, transfers and how promotions happen in practice.
- Be honest about your situation: family responsibilities, willingness to relocate, and whether you prefer screen-based data work or file-based office work.
Practice
- Which CHSL posts start at a higher pay level?
- What usually happens to your lower preferences once you are allotted a post?
- In the worked example, why did Candidate C get nothing in the second version?
- Does listing a post higher on your list ever take it away from a better-ranked candidate?
- Name two factors besides pay to weigh when choosing a department.
Answers:
- DEO posts (Level 4 or 5), compared with LDC/JSA at Level 2.
- You are usually not considered for them.
- Candidate B, not eligible for DEO, dropped to LDC-Y, leaving C's two choices already filled.
- No. Candidates are processed in rank order, so a better-ranked candidate is always allotted first.
- Any two of location and city class, transfer policy, nature of work, promotion prospects, family needs.
What to do next
- Make the full list of posts in your notification, with pay levels and requirements.
- Decide now whether you will list DEO posts, and if so start DEST practice with the DEST guide.
- Score each post on your own five factors and draft your order.
- Recheck the draft after a day, then submit exactly as instructed and keep a copy.
A note on dates and numbers. Exam patterns, vacancies and schedules change from year to year. Always confirm the current details in the latest notification on the Staff Selection Commission website .
Get the next SSC CHSL guide by email
New guides every week. No spam, unsubscribe any time.