Prime Minister Narendra Modi on Sunday laid the foundation stone for redevelopment of 508 railway stations across the country via video conferencing. These 508 stations are spread across 27 states and union territories, including 55 each in Uttar Pradesh and Rajasthan, 49 in Bihar, 44 in Maharashtra, 37 in West Bengal, 34 in Madhya Pradesh, 32 in Assam, 25 in Odisha, 22 in Punjab, 21 each in Gujarat and Telangana, 20 in Jharkhand, 18 each in Andhra Pradesh and Tamil Nadu, according to the Prime Minister's Office. Besides 15 stations are in Haryana and 13 in Karnataka.