A Post-Poll-cum-Exit Poll was conducted in Gujarat by Lokniti, Centre for the Study of Developing Societies (CSDS), Delhi, for ABP News. The Post Poll was conducted among 2750 voters in 29 of the 89 assembly constituencies that voted in the first phase of voting on December 9. The Exit Poll was conducted among 4898 voters in 31 of the 93 assembly constituencies that voted in Phase 2 on December 14. The sampling design adopted was multi-stage random sampling. The assembly constituencies where the survey was conducted were randomly selected using the probability proportional to size method. Thereafter, four polling stations within each of the sampled constituencies were selected using the systematic random sampling method. In the Post Poll, voters randomly selected from the electoral rolls were approached by the field investigators for an interview at their place of residence after votes had been cast. The duration of an interview was about 30 minutes. In the Exit Poll, the field investigators approached voters outside the polling booth after they had voted and asked them only a few questions.
Please find below the link for the detailed Report :
https://www.lokniti.org/media/upload_files/Lokniti-CSDS-ABP-News-Gujarat-and-Himachal-Pradesh-Post-Poll-Vote-Forecast.pdf