There are six casual vacancies in the Council of States from various States as per details below: –
| State | Name of Member | Cause of vacancy | Date of vacancy | Term Up to |
| West Bengal | Manas Ranjan Bhunia | Resignation | 06.05.2021 | 18.08.2023 |
| Assam | Biswajit Daimary | Resignation | 10.05.2021 | 09.04.2026 |
| Tamil Nadu | Thiru. K.P. Munusamy | Resignation | 07.05.2021 | 02.04.2026 |
| Tamil Nadu | Thiru. R. Vaithilingam | Resignation | 07.05.2021 | 29.06.2022 |
| Maharashtra | Rajeev Shankarrao Satav | Death | 16.05.2021 | 02.04.2026 |
| Madhya Pradesh | Thaawarchand Gehlot | Resignation | 07.07.2021 | 02.04.2024 |
The Commission has decided to hold six bye-elections to the Council of States from above mentioned States to fill up the above said vacancies in accordance with the following schedule: –
| S. No | Events | Dates |
| Issue of Notifications | 15th September, 2021 (Wednesday) | |
| Last date of making nominations | 22nd September, 2021 (Wednesday) | |
| Scrutiny of nominations | 23rd September, 2021 (Thursday) | |
| Last date for withdrawal of candidatures | 27th September, 2021 (Monday) | |
| Date of Poll | 04th October, 2021 (Monday) | |
| Hours of Poll | 09:00am – 04:00pm | |
| Counting of Votes | 04th October, 2021 (Monday) at 05:00pm | |
| Date before which election shall be completed | 06th October, 2021 (Wednesday) |
Broad Guidelines of Covid-19 as already issued by ECI as well as the recent guidelines issued by ECI as contained in para 13 of Press Note dated 04.09.2021 available at link https://eci.gov.in/files/file/13681-schedule-to-fill-casual-vacancy-and-adjourned-poll-in-the-assembly-constituencies-regarding/ to be followed, wherever applicable, during entire election process for all persons.
The Chief Secretaries of States concerned are being directed to depute a senior officer from the State to ensure that the extant instructions regarding COVID-19 containment measures are complied with while making arrangements for conducting the election.
