Gambhir, 31, will replace overseas batsman Hamish Rutherford, who will go back to New Zealand after Saturday\'s FLT20 finals.
Indian batsman Gautam Gambhir has signed for English country side Essex for remainder of the season.
Gambhir, 31, will replace overseas batsman Hamish Rutherford, who will go back to New Zealand after Saturday's FLT20 finals.
"I am delighted to have this chance to make my county cricket debut with Essex," Gambhir was quoted as saying. "I am thankful to Essex for presenting me with this option and BCCI for allowing me to participate in county cricket.
"I hope I can make some meaningful contributions to Essex in the ongoing season."
Gambhir, who has represented India in 54 Tests, 147 ODIs and 37 T20s, is expected to make his Essex debut in Tuesday's Division Two match against Northamptonshire.
Essex head coach Paul Grayson said Gambhir's experience would be extremely valuable for the side. "Gautam is a player with real pedigree, which has been showcased on the biggest stages in world cricket. "He will no doubt bring his experience to the squad during an important stage of the season for us in the County Championship and YB40 competition."