Explanation:
When on election duty, government officers work under the control of the Election Commission of India (ECI). The Election Commission is an independent constitutional body responsible for conducting free and fair elections in the country.

Role of the Election Commission:
1. Conducting Elections: The Election Commission is responsible for conducting elections at various levels - parliamentary, state assembly, and local bodies. It ensures the smooth conduct of elections by coordinating with the concerned district administration and other government officers.

2. Preparing Electoral Rolls: The Election Commission prepares and updates the electoral rolls, which contain the names of eligible voters. It ensures the inclusion and exclusion of names based on eligibility criteria and conducts voter registration drives.

3. Issuing Election Notifications: The Election Commission issues notifications for the elections, including the schedule, polling stations, and other relevant information. It also announces the code of conduct that all political parties, candidates, and government officers must follow during the election period.

4. Monitoring Election Expenditure: The Election Commission keeps a check on the expenditure incurred by candidates during elections. It sets limits on campaign expenses and monitors the adherence to these limits to prevent malpractices and undue influence.

5. Ensuring Level Playing Field: The Election Commission ensures a level playing field for all political parties and candidates by taking measures to prevent electoral malpractices, corruption, and misuse of government resources. It also acts on complaints of violations and takes appropriate actions.

6. Deploying Government Officers: The Election Commission deploys government officers, including civil servants, police personnel, and other staff, to conduct elections smoothly. These officers work under the control and supervision of the Election Commission to ensure the integrity of the electoral process.

Conclusion:
Government officers work under the control of the Election Commission when on election duty. The Election Commission plays a crucial role in conducting free and fair elections by overseeing the entire electoral process and ensuring compliance with the code of conduct. It is an impartial and independent body that upholds the principles of democracy and ensures the integrity of the electoral process.