Which of the following would affect the Revaluation Account at the time of reconstitution of a partnership firm?

The correct option is Increase in assets.

A Revaluation Account is a nominal account prepared by a partnership firm at the time of its reconstitution (such as the admission of a new partner, retirement or death of an existing partner, or a change in the profit-sharing ratio). Its primary purpose is to revalue the assets and reassess the liabilities of the firm to their current market values, ensuring that no partner benefits or suffers due to changes in values that occurred prior to reconstitution.

The rules for recording transactions in the Revaluation Account are based on the principles of a nominal account (Debit all expenses and losses, Credit all incomes and gains):
1. Debit side (Losses/Decreases in net worth): Recorded when there is a decrease in the value of assets or an increase in the value of liabilities.
2. Credit side (Gains/Increases in net worth): Recorded when there is an increase in the value of assets or a decrease in the value of liabilities.

Let us evaluate the given options to understand why only the first option affects the Revaluation Account:

* Increase in assets: This represents a gain for the firm. The journal entry to record this is:
Asset Account Dr.
    To Revaluation Account
Since this transaction directly credits the Revaluation Account, it directly affects it.

* Drawings against capital, Interest on capital, and Partner's salary: These are transactions between the partners and the firm. They do not relate to the revaluation of assets or liabilities. Instead, they are appropriations of profit and are adjusted through the Profit and Loss Appropriation Account and the Partners' Capital or Current Accounts. Consequently, they have no impact on the Revaluation Account.