The world highest rail bridge, being constructed in the Union Territory of Jammu and Kashmir as part of a major railway project, is located over which of the following rivers?

Introduction / Context:
India is constructing one of the world highest railway bridges in the Himalayan region to improve connectivity to Jammu and Kashmir. This engineering landmark has received wide coverage in news and competitive exam preparation material. The question checks whether you know over which river this world record bridge is being built.

Given Data / Assumptions:
• The structure is described as the world highest rail bridge being constructed in Jammu and Kashmir. • Options list four rivers of the region: Jhelum, Chenab, Indus and Ravi. • We assume familiarity with the Udhampur Srinagar Baramulla railway line project. • The bridge in question is widely associated with a specific river gorge.

Concept / Approach:
The famous bridge is the Chenab Rail Bridge, constructed over the deep gorge of the Chenab River between Bakkal and Kauri in the Reasi district. It is part of the railway link that will connect the Kashmir Valley with the rest of India. The Jhelum flows mainly through the Kashmir Valley, the Indus further north and east, and the Ravi in the southern parts of the Jammu region and into Punjab. The record setting arch bridge is explicitly located on the Chenab River, so that is the correct choice.

Step-by-Step Solution:
Step 1: Recall news reports of the Chenab Rail Bridge described as one of the highest railway bridges in the world, surpassing well known bridges in height above the river bed. Step 2: Note that this bridge is part of the Udhampur Srinagar Baramulla railway project in the Jammu region. Step 3: Remember that the Chenab River flows through deep gorges in the Reasi and Kishtwar areas and is the river spanned by the bridge. Step 4: Compare other rivers: Jhelum flows more gently through the valley and does not have such a record bridge, Indus flows mainly outside this project area, and Ravi does not host this world record structure. Step 5: Therefore, the world highest rail bridge in Jammu and Kashmir is on the Chenab River.

Verification / Alternative check:
Railway project descriptions and official releases refer to the structure specifically as the Chenab Bridge, often mentioning its height over the Chenab River. Maps illustrating the new railway line label this bridge across the Chenab near Kauri. Media coverage highlighting the record height always names the Chenab River, not Jhelum, Indus or Ravi, confirming the correct pairing.

Why Other Options Are Wrong:
Jhelum River has existing bridges and railway lines in the valley but none described as the world highest rail bridge. Indus River flows through Ladakh and further west, not along the main Jammu railway alignment where this specific bridge is located. Ravi River flows in the Jammu region and into Punjab, but the high arch railway bridge project that attracted global attention is not on the Ravi.

Common Pitfalls:
Some candidates confuse the names of north western rivers and may pick Jhelum or Indus because they think any Himalayan river might be correct. Others vaguely remember a high bridge in Jammu and Kashmir but do not recall the river name. To avoid mistakes, one should memorise the phrase Chenab Rail Bridge when thinking of the world highest railway bridge in this context.

Final Answer:
The world highest rail bridge in Jammu and Kashmir is being constructed over the Chenab River.