Observers are almost unanimous that the land row is an effect rather than a cause of antagonism between the two regions.
They say the simmering discontent dates back to the ending of the monarchy in Kashmir in 1947.
The monarch, Maharaja Hari Singh, was a Hindu who belonged to the main ethnic Dogra community of Jammu.
"When the monarchy ended and a popular government was installed under the leadership of Sheikh Abdullah, the power base shifted to the valley of Kashmir which has a larger population than Jammu," says Professor Noor Ahmed Baba of Kashmir University.
He argues that the people of Jammu felt disenfranchised then and that feeling remains even now.