Explanation

Doab Chaj lies between the Chenab and Jhelum.

Doab Chaj lies on the southern fringes of the Kashmir valley.

Chaj Doab can be classified as one of the main regions of Punjab, Pakistan

This doab covers:

 Gujrat District

Bhimber District

Mirpur District

Mandi Bahauddin District

Sargodha District

Lalian Tehsil of Chiniot District 

some areas of Jhang Tehsil of Jhang District.

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Five Important Doabs of Pakistan 

Sindh Sagar Doab is b/w: Indus & Jhelum rivers 

Jech Doab is b/w: Jhelum & Chenab rivers 

Bari Doab is b/w: Ravi & Sutlej rivers

Rachna Doab  is b/w: Ravi  & Chenab rivers  

Bias Doab is b/w: Bias & Sutlej rivers 

Doab Chaj is b/w: Chenab and Jhelum.