Answer : 2. "Chenab"
Explanation :

Union Railway Minister Ashwini Vaishnaw announced that the first trial run of the Sangaldan-Reasi train has been completed, marking a significant milestone in crossing the world's highest railway bridge Chenab. The bridge was built 359 metres (about 109 feet) above the Chenab river in the Jammu and Kashmir region, and is about 35 metres higher than the Eiffel Tower.