Multiple choice general knowledge Which is the longest railway tunnel in the country? Karbude tunnel, Konkan Railway Sawarde tunnel, Konkan Railway One Three Hill, Khandala - Pune line Banihal Pass, Pir Panjal in Jammu & Kashmir Reveal answer Fill a bubble to check yourself D Correct answer Explanation The Pir Panjal Railway Tunnel (Banihal Pass) in Jammu & Kashmir is India's longest railway tunnel at approximately 11.2 km. The Karbude tunnel was previously the longest but was surpassed by the Pir Panjal tunnel upon its completion.