Train No. 12590, From Secunderabad to Kanpur - Gorakpur exp, General quota seats available as - SLEEPER CLASS - 64, 3 AC - 8, 2 AC - 4, where as Tatkal quota seats as - SLEEPER CLASS - 238, 3 AC -64, 2 AC - 10., see the difference. majority of the seats kept under tatkal scheme to generate more income.