The world 39 s highest railway bridge is located in which Indian state UT ........

Explanation:

The Chenab Bridge is the world’s highest railway bridge, which is located in Jammu and Kashmir. The steel arch of the world’s highest railway bridge was completed last year, while the overarch deck is set to be completed.
Another milestone at the world’s highest railway bridge will be achieved when the overarch deck of the Chenab Railway Bridge is completed with a golden joint.