IRB Infrastructure Developers Limited has executed a letter agreement on December 24, 2025, which amends terms of a previously executed share subscription agreement. This new agreement involves Bricklayers Investment Pte. Ltd. (GIC), Mr. Virendra D. Mhaiskar, IRB Holding Private Limited, and other members of the Promoter and Promoter Group. The Letter Agreement details the waiver and release by GIC of certain obligations of the Promoter and Promoter Group under the original share subscription agreement. The parties to this Letter Agreement include IRB Infrastructure Developers Limited, Bricklayers Investment Pte. Ltd. (GIC), Mr. Virendra D. Mhaiskar, IRB Holding Private Limited, Mrs. Deepali Mhaiskar, and Virendra D. Mhaiskar HUF. The nature of the agreement is a letter varying certain terms of the share subscription agreement, with the key amendment being GIC's waiver of specific obligations from the promoter entities. This disclosure is made in accordance with Regulation 30 of the SEBI Listing Regulations. There are no significant terms such as special rights, first right to share subscription, or restrictions on capital structure mentioned in this new agreement. The transaction does not fall under related party transactions as it is not done at arm's length.