A call to action (CTA) is a marketing term for the next step a marketer wants the audience or reader to take. The following navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move through main tier links and expand / close menus in sub tiers. Up and Down arrows will open main tier menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items. CTA Apparels Pvt. Ltd., established in 1993, is a leading garment manufacturer known for sustainable practices, advanced textile processing, and high-quality apparel production for global brands. Information about CTA bus and train service in and around Chicago. Find maps, schedules, service alerts, plan a trip, jobs, news and more!