The Comptroller and Auditor General (CAG) of India plays a role in:

Preparation of Assam's budget
Auditing government accounts
Implementation of fiscal policies
Collection of taxes

The correct answer is: b) Auditing government accounts.

The Comptroller and Auditor General (CAG) of India is an independent constitutional authority responsible for auditing the accounts of the Union and the States, as well as of bodies and authorities that receive money from the Consolidated Fund of India. The CAG also has the power to audit the accounts of private companies that have been contracted by the government.

The CAG’s role is to ensure that public money is spent in a legal, efficient, and effective manner. The CAG does this by conducting audits of government departments, ministries, and other public bodies. The CAG’s reports are tabled in Parliament, and the government is required to take action on the CAG’s recommendations.

The CAG is an important safeguard against corruption and financial mismanagement in the government. The CAG’s reports have often led to major reforms in the way that the government spends money.

The other options are incorrect because:

  • a) Preparation of Assam’s budget is the responsibility of the Assam Finance Department.
  • c) Implementation of fiscal policies is the responsibility of the Ministry of Finance.
  • d) Collection of taxes is the responsibility of the Central Board of Direct Taxes and the Central Board of Excise and Customs.