The unit which keeps government's books of accounts is the

The unit which keeps the government's books of accounts is the Treasury Department. The Treasury Department is responsible for managing the government's finances, including collecting revenue, making payments, and keeping track of all financial transactions. It is also responsible for preparing the government's budget, managing public debt, and ensuring compliance with financial regulations. Essentially, the Treasury Department acts as the government's bank, keeping track of all its financial activities and ensuring that the government's finances are managed properly.