When you hire an election survey company, check four things: how it chooses and reaches respondents, how large and balanced the sample is, whether calls and data follow telecom and privacy rules, and who owns the results. A survey for your own planning is one thing. Publishing results is restricted at certain times, so check the Election Commission's notification for your election.
By Rohit Jadhav. Last reviewed 25 October 2026. This is operational guidance, not legal advice. Rules change, so confirm the current requirements for your election.
Survey vendors are easy to find and hard to judge. Many send a confident slide deck, a round number and an invoice. If you are a candidate, a party worker or a campaign manager, you need to know what is behind that number. This guide explains how phone-based and IVR surveys work, what the law says about publishing results, and what to ask before you pay. It belongs to our series on election campaign messaging rules. If you are weighing an automated voice survey, see our page on IVR for election campaigns. More guides sit under Election Campaigns.
What does an election survey company do?
An election survey company collects answers from a sample of voters and reports what they say. The sample might be a few hundred people in one constituency or several thousand across a state. The purpose is usually to understand local issues, test messages or estimate how a contest is shaping up.
The word "estimate" matters. A survey reports what a sample said at a point in time. It does not predict the result, and a good vendor will say so.
How are election surveys carried out?
The main methods are door-to-door interviews, live phone calls, automated IVR calls and online panels. Each has trade-offs.
- Door-to-door. Slow and costly, but you can control who you speak to and reach people without phones.
- Live phone calls. Faster, and an interviewer can probe. Quality depends on the interviewer.
- IVR (automated) calls. A recorded questionnaire where the person answers by pressing keys. Fast and cheap at scale, but it works for short questions only, and people hang up.
- Online panels. Cheap, but they skew towards people who are online, which matters in many constituencies.
Pick the method by who you need to hear from. If your voters are mostly rural and speak a regional language, a smartphone panel will mislead you.
What is an IVR election survey?
An IVR election survey is an automated phone call that plays a recorded question and records the key the listener presses. For example: "Press 1 if water supply is your main concern. Press 2 for roads." The answers are tallied by booth, ward or language.
It suits one to three simple questions. It does not suit open-ended answers. Our page on IVR for election campaigns describes call routing, a language menu and call recording. If you want a survey flow on top of that, ask the vendor whether that specific feature is available and how it is set up, rather than assuming it is.
What does the law say about publishing survey results?
There are two restrictions you need to know. The first is the 48-hour period before polling ends. Section 126(1)(b) of the Representation of the People Act, 1951 bars displaying election matter, including the results of an opinion poll, in electronic media in that period. The second is the exit poll ban under Section 126A, which the Commission notifies for each election. It generally runs from the start of polling on the first day until half an hour after polling closes (see the Tribune report on the 2024 Jammu and Kashmir notification for an example). Penalties can include imprisonment of up to two years, a fine, or both.
Both rules turn on the details of a particular notification, so read the Commission's own notice for your election. A survey you keep for internal planning is not the same as one you publish. See our guide to the 48-hour silence period for what else it covers.
What should you check before hiring an election survey company?
- Method. How will respondents be reached, and in which languages?
- Sample. How many people, chosen how, and how does the sample match the constituency by area, age and gender?
- Source of numbers. Where do the phone numbers come from, and were the people contacted lawfully? See our guide to the voter list and SMS rules for the same questions.
- Calls and consent. Will calls go through registered senders and numbers under TRAI's rules? Are there time-of-day limits and a way to opt out?
- Data handling. Who stores the answers, for how long, and who can see them?
- Method statement. Will the vendor give you a written description of the method, so you can judge the result?
- Ownership. Do the raw results belong to you, and may the vendor sell them to others?
- Independence. Is it a survey, or a message dressed as one? Questions designed to push respondents towards a candidate are not research.
How is a survey different from a campaign message?
A survey asks. A campaign message tells. The two should not be mixed in one call. If a "survey" call ends up arguing for a candidate, the answers are useless as data, and the call may be treated as a campaign call under the rules that apply to your election. Keep research and persuasion separate in the plan and in the scripts. A survey also needs a lawful way to reach people, so it can be covered by the same registration and approval rules as any other bulk voice call.
A worked example (hypothetical)
A campaign manager wants to know the top local issue in a 200-booth constituency. This is an invented example. She asks two vendors for a quote. The first promises "5,000 responses in two days" and cannot say where its numbers come from. The second proposes 1,200 IVR responses spread across all booths, in Hindi and Marathi, from numbers the campaign can document, with a one-page method note and the data delivered to the campaign. The second is slower and gives fewer responses, but she can explain it to her candidate and defend it if someone questions the result. She also asks that the questionnaire stay at two questions, because a long IVR call loses people.
Common mistakes when buying a survey
- Paying for the headline number. Sample size means little without sample design.
- Ignoring language. A survey in the wrong language measures the wrong people.
- Using unexplained phone numbers. The risk is yours, not just the vendor's.
- Publishing results at the wrong time. Read the notification first.
- Asking leading questions. You get an answer you wanted and nothing you can use.
- Long IVR questionnaires. Keep to a few short questions.
- Treating a survey as a forecast. It reports what a sample said, once.
Frequently asked questions
Is it legal to publish an opinion poll before an election?
Not at all times. Section 126(1)(b) of the Representation of the People Act, 1951 bars displaying election matter, including opinion poll results, in electronic media during the 48 hours before polling ends. The Commission also notifies an exit poll ban for each election. Read the notification for yours.
Can an IVR survey replace a door-to-door survey?
Seldom completely. IVR is quick and can cover many booths, but it reaches only people with phones, works for short questions and has high drop-off. Many campaigns use IVR for breadth and door-to-door work for depth.
How many responses do we need?
It depends on what you want to measure and how precisely. A statistician or a reputable vendor can advise on this, and they should explain the assumptions. Be wary of anyone who gives a fixed number without asking about your constituency.
Do survey calls need to follow TRAI rules?
Calls made in bulk for commercial purposes go through registered senders under TRAI's regulations. How a political survey call is classified is decided by operators in practice, so ask your vendor how its calls are registered and how recipients can opt out.
Who should own the survey data?
The campaign that paid for it, unless the contract says otherwise. Put it in writing, including whether the vendor may keep, reuse or sell the answers, and when the data will be deleted.
Sources checked
All checked on 25 October 2026.
- Election Commission of India press note ECI/PN/38/2024 (2 April 2024) (Section 126 text)
- The Tribune: Election Commission prohibits exit polls during J&K elections (5 September 2024) (news report on Section 126A notification and Section 126(1)(b))
- TRAI, consolidated Telecom Commercial Communications Customer Preference Regulations, 2018 (registered senders; consent)
- Nexcomm, IVR for election campaigns (what the page describes: helpline, language menu, missed-call alerts, call recording)
If you are planning an IVR helpline or voice campaign and want to talk through the options, you can reach our team through the contact page.