Sentence Improvement questions give you a sentence with one underlined portion and ask whether it should be replaced by one of the alternatives, or left unchanged. The error — when there is one — is almost always grammatical, not stylistic.
Here is what makes this question type deceptively hard: the sentences in IBPS RRB PO are thematically rural and banking-specific. They talk about NABARD, Kisan Credit Cards, subsidies, and SHGs. The vocabulary is familiar to you. That familiarity is the trap — you read the sentence, it sounds right because the topic makes sense, and you miss the grammar error buried in the syntax.
Think of it like checking a loan application. The purpose of the loan (buy a tractor) might be perfectly reasonable, but you still have to verify that every field in the form is correctly filled. The subject of the sentence is the borrower — the verb is the sanctioned amount. They must match.
The good news: IBPS RRB PO sentence improvement questions draw from a narrow, well-defined error pool. You are not being tested on obscure grammar. You are being tested on a handful of rules that the paper recycles year after year, just with different clothing (agricultural loans, microfinance, e-NAM, etc.).
Those rules, in order of frequency in this exam:
not only...but also pair.aware of vs aware about, despite vs despite of.government, committee, team treated as singular in formal/institutional contexts.which vs that for non-restrictive vs restrictive clauses.Get those five areas locked down and you are solving 80%+ of this question type on autopilot.
The rule is simple: singular subject takes singular verb, plural subject takes plural verb. The exam makes it hard by inserting a long phrase between the subject and the verb, making you forget what the subject was.
Pattern: [Singular Head Noun] + [long prepositional/relative phrase] + [wrong plural verb]
Look at this structure:
The digitalization of banking services in rural areas have revolutionized...
The actual subject is digitalization — singular. The phrase of banking services in rural areas is a modifier. Cross it out mentally. You get: The digitalization... have revolutionized. Wrong. Must be has revolutionized.
The exam also runs the reverse trap:
The NABARD's refinancing policies has significantly contributed...
Here the subject is policies — plural. Verb must be have. The word NABARD's creates a false sense of a single entity, but it is a possessive modifier, not the subject.
Your immediate reflex: Underline the subject. Ignore everything between subject and verb. Match the verb to the underlined subject alone.
When a gerund phrase or an abstract noun phrase is the subject, treat it as singular.
The government's initiative to promote organic farming through subsidies and training programs have gained momentum...
initiative is singular. The clause to promote organic farming through subsidies and training programs describes the initiative — it doesn't change the number. So the verb is has, not have.
The longer the modifier after the head noun, the more likely the exam is exploiting this trap. Be suspicious of any sentence where there are 10+ words between the subject and the verb.
In Indian formal and legal/institutional English (which IBPS exams follow), collective nouns like government, committee, board, jury, team, management take a singular verb.
The government have announced... → Wrong The government has announced... → Correct
This differs from British English, where collective nouns can take plural verbs. Don't apply British rules here. IBPS follows the singular-collective convention consistently.
not only...but alsoThe not only X but also Y construction requires X and Y to have the same grammatical form.
...which not only enhances productivity but also ensuring environmental conservation.
enhances is a present tense verb (third-person singular). So ensuring (a participle/gerund) breaks the parallel. You need ensures — same form.
The test: replace not only...but also with and. If the sentence breaks, the parallel is broken. Fix it by making both parts the same part of speech in the same tense.
These are fixed collocations. You either know them or you don't — but the exam tests the same three or four repeatedly:
| Incorrect | Correct | Note |
|-----------|---------|------|
| aware about | aware of | Always of |
| despite of | despite | Never of after despite |
| in spite of | in spite of | Here of IS required |
| discuss about | discuss | No preposition needed |
| cope up with | cope with | No up |
Despite and in spite of mean the same thing, but one takes of and the other doesn't. This exact pair appears in IBPS RRB PO papers regularly.
which vs thatFor non-restrictive (extra information) clauses, use which with a comma. For restrictive (defining) clauses, use that without a comma.
...the new agricultural loan schemes that will help small farmers → restrictive, no comma,
thatis fine. ...agricultural equipment*, which** will help farmers...* → non-restrictive, comma +which.
The exam occasionally offers that as a trap where the sentence has a comma-separated non-restrictive clause — which is the only correct answer there.
When you see a long sentence, physically cross out everything between the subject and verb in your rough work. Write just [Subject] + [Verb]. Does it match in number? This removes the exam's camouflage immediately.
Example: The government's refinancing policies [that were designed to boost rural lending in underserved districts] has... Stripped: policies has — instantly wrong. Takes 5 seconds vs 30 seconds of reading the full sentence to "feel" it.
Standard method: re-reading full sentence 2-3 times = ~40s. Strip-the-Phrase = ~8s.
Every time you see despite, ask: is of following it? If yes, it is wrong. Remove of. That's the complete rule.
Contrast with in spite of — the of is part of the fixed phrase and must stay.
Micro-example: Despite of the drought, yields improved. → Delete of → Despite the drought, yields improved.
This eliminates one wrong option in 3 seconds. In a 4-option question, you've reduced your decision to 3 options instantly — that's 25% less cognitive load.
Lock this: aware always bonds with of. Never about, never on, never for. Any option containing aware about is automatically wrong — mark it and move on without reading the rest of that option.
The paper has given aware about as a distractor in multiple years. You lose 8-10 seconds reading and evaluating that option. With this lock, you skip it in 1 second.
Step savings: 3 steps of evaluation → 0 steps. Pick from remaining 3 options.
For any institutional/government collective noun (government, board, committee, RBI, NABARD as an institution), immediately mark options with plural verbs (have, were, are) as wrong when these nouns are the subject.
Micro-example: The committee have decided... — wrong on sight. The committee has decided... — correct.
This makes 1-2 options eliminable in under 5 seconds in every collective noun question. Standard approach of checking each option = ~30s. Elimination = ~10s.
For not only X but also Y sentences, find the verb in the X slot. Write it down. Now check if the Y slot has the same form. If not, find the option that gives Y the same form.
Example: not only enhances → Y must be ensures (not ensuring, not ensured).
You do not need to understand why — just mirror the form. This works for both X and Y, either X or Y, and neither X nor Y as well. Same symmetry principle.
Step count: 2 steps (find X form, match Y form) vs 5+ steps of grammatical reasoning from scratch.
When you open a sentence improvement question, work through this sequence in the exam hall:
Step 1 — Read the full sentence once. Do not rush. Notice: what is the subject? What is the underlined portion?
Step 2 — Classify the error type. Is the underlined part a verb? → Check subject-verb agreement. Is it a preposition? → Check your fixed collocation list. Is it part of a not only...but also structure? → Check parallel form. Is it a relative pronoun? → Check which vs that and comma presence.
Step 3 — Apply Strip-the-Phrase if the subject-verb distance is large. Cross out the intervening phrase, match directly.
Step 4 — Eliminate wrong options fast. Use the Collective Noun rule, Aware-of Lock, and Despite-or-of Test to eliminate 1-2 options immediately before reading all four carefully.
Step 5 — If no error is visible, trust "No Improvement" only after you have genuinely checked all five error categories. Don't pick it out of uncertainty — that's how you lose marks.
One more thing: if two options differ only in subject-verb agreement and one option also changes another word unnecessarily, pick the one that fixes only the actual error and leaves the rest of the sentence intact.
Why this question: Tests the classic long-modifier trap — policies is the subject, but NABARD's refinancing creates false singularity.
Solving path: Strip NABARD's refinancing — it is a possessive modifier. The head noun is policies (plural). Verb must be have. Option B is correct. Options A and C use singular has, Option D uses past perfect had (no tense reason for that here). B wins.
Why this question: Tests the reverse trap — singular abstract noun digitalization followed by a long plural modifier that tempts you toward have.
Solving path: Subject = digitalization (singular abstract noun). Strip of banking services in rural areas. Digitalization has... — Option B. Options A and C use wrong number or wrong tense. Option D (having) makes no grammatical sense as a main verb. B wins.
Why this question: Combines parallel structure (not only...but also) with tense consistency in a rural banking context.
Solving path: Find X in not only X but also Y. X = enhances — present tense, third-person singular. Y must match form. ensuring (Option A) is a participle — wrong form. ensures (Option B) matches perfectly. ensured (Option C) is past — tense mismatch. ensure (Option D) is base form — number mismatch. B wins.
Why this question: Tests two errors simultaneously — preposition after aware and subject-verb agreement for schemes.
Solving path: Two independent errors to fix. First: aware about → must be aware of. Second: schemes... was launched → schemes is plural, so were launched. Option B fixes both. Option C fixes only the preposition but leaves were launched — wait, actually check: Option C uses about (wrong) + were launched (correct). Option D uses of (correct) + was launched (wrong). Only Option B gets both right. B wins.
Why this question: Tests despite of — one of the most recycled preposition errors in IBPS, plus subject-verb agreement.
Solving path: Two errors: Despite of → must be Despite (no of). Also farmers still struggles → farmers is plural, verb must be struggle. Option A fixes struggles → struggle but keeps Despite of — half-fixed, still wrong. Option B changes to In spite implementing — wrong, needs In spite of implementing. Option C fixes Despite of → Despite but leaves struggles — still wrong. Option D fixes both: Despite implementing and struggle. D wins.
Treating NABARD, RBI, government as automatically plural because they represent many people. These are institutional collective nouns and take singular verbs in formal Indian English. The government has, not have.
Seeing policies have and reflexively replacing with policy has. When the subject is correctly plural (like policies), you don't need to change the noun — only fix the verb to have. Several options will tempt you to singularize the noun instead.
Picking despite of options without noticing the of. The sentence will read smoothly because in spite of is correct, and your brain fills in the pattern. Slow down and read despite followed by its next word every time.
Confusing tense in parallel structure. In not only enhances but also ensures, students often choose ensure (base form) instead of ensures (third-person singular present), forgetting that the parallel verb must also agree with the third-person singular subject.
Fixing only one of two errors in a sentence. When a question has two errors, three of the four options will fix only one — they are designed to look correct after a quick read. Always verify the entire underlined (or replacement) option, not just the part that caught your eye.
Choosing No Improvement because the sentence sounded fine. IBPS RRB sentences on rural banking topics sound topically coherent. That familiarity masks grammatical errors. Run the five-point checklist before you commit to No Improvement — don't let thematic familiarity do your grammar checking for you.