Explanation:

The Rechna Doab, or Rachna Doab (in Pakistan), can be classified as one of the main regions of Punjab. Punjab historically has been divided into regions based on its various rivers, since the name Punjab is based on its 5 main rivers. The rechna includes all the area between the Chenab and Ravi rivers, all the way up from Jammu Division of the Jammu and Kashmir state in India till their confluence in Punjab, Pakistan. It lies between 30° 35' and 32° 50' N. and 71° 50' and 75° 3'E., the name was formed by the Mughal emperor Akbar, by combining the first syllables of the names of the two rivers.