Lakhori bricks or Badshahi bricks or Kakaiya bricks, are flat thin red colored burnt clay bricks, originating from the Indian subcontinent, that became increasingly popular element of Mughal architecture during Shah Jahan; and remained so till early 20th century when lakhori bricks and similar Nanak Shahi bricks were replaced by the larger standard 9"x4"x3" bricks called ghumma bricks introduced by the colonial British India.