Sanjay Bangar struck an unbeaten 111 to take Railways to a strong position at 242 for four on the opening day of the Ranji Trophy Super League match against Tamil Nadu at New Delhi today. In other matches, Gujarat were 237 for seven against Orissa at Ahmedabad, Karnataka were 372 for five against Uttar Pradesh in Meerut and Delhi were 300 for two against Baroda in Vadodara when stumps were drawn for the day.