Bangladesh wicketkeeper-batsman <a href="https://www.india.com/topic/Liton-Das">Liton Das</a> was taken to a city hospital for a scan after he picked up a knock on the helmet by a <a href="https://www.india.com/topic/Mohammed-Shami">Mohammed Shami</a> delivery, during their first innings against India on Day 1 of the country's first Day-Night Test at the Eden Gardens on Friday. <p></p> <p></p>"Liton has been taken for a CT scan after he was feeling "dizzy", a source said. <p></p> <p></p>Mehidy Hasan replaced Liton as concussion substitute as Bangladesh were bowled out for just 106 inside three hours. Liton was on 15 when he was hit by a rising Shami delivery. <p></p> <p></p>He took off his helmet immediately and took a look as Shami walked up to apologise. <p></p> <p></p>The physiotherapist rushed in as per the latest concussion protocols. Liton continued for some time but after umpires, Joel Wilson and Marais Erasmus had a look just before tea, he was seen walking off and later retired hurt. <p></p> <p></p>Liton scored a brisk 24 to show some fight after all Bangladesh batsmen succumbed to the might of the Indian pace battery. Opener Shadman Islam top-scored with 29. <p></p> <p></p>Meanwhile, Umesh Yadav bagged three wickets as Indian pacers toyed with Bangladesh batters to leave them tottering at 73/6 at Tea on Day 1 of the second Test at the Eden Gardens on Friday. <p></p> <p></p>To make matters worse for Bangladesh, wicketkeeper-batsman Liton Das was retired hurt for 24 after he was hit on the helmet by a Mohammed Shami delivery when he was batting on 15 when umpires called Tea during the first-ever Day-Night Test being played between the two nations.