Which train in India has the longest route length? A. Howrah - Jammu Tawi Himgiri Express B. Kanyakumari - Jammu Tawi Himsagar Express C. Kanyakumari - Dibrugarh Vivek Express D. Guwahati-Thiruvanthapuram Express
C [Kanyakumari - Dibrugarh Vivek Express] Explanation: Dibrugarh–Kanyakumari Vivek Express is a weekly Express train of the Vivek Express series the Indian Railways which runs from Dibrugarh in India's north eastern state Assam to Kanyakumari in Tamil Nadu.