Section 63(4) in The Punjab Scheduled Roads and Controlled Areas Restriction of Unregulated Development Rules, 1965
(4)In an internal wall the horizontal damp proof course shall be laid in level with the upper surface of the concrete in the finished floor. The continuity of damp proof course between the internal and the external wall shall be secured by the insertion of bitumenised bricks or cement concrete bricks laid in cement mortar or any other damp proof materials.
