Gambhir, who had signed for the English county side and played few games, returned home on Sunday (September 1). The left-hander, after a poor beginning, struck form by hitting a century.
"Gautam Gambhir returned to his native India on Sunday for family reasons. At this stage Essex Cricket and Gautam are unable to make any further comment," Essex county said in a statement on its website.
"Essex Cricket is fully supportive of Gautam and very much hope that he will return to Essex before the end of the 2013 English domestic season," the statement added.
It is still not clear whether Gambhir will return to England to fulfill his contract.