The company, however, did not disclose the renewal fee.
For DHL, this is the third year of its sponsorship with the country's top professional football league as associate sponsor, the company said in a statement.
This season, ISL has grown to 95 matches from last year's 65, and DHL will be official match ball partner for all games.
The company said it will unveil an exciting 360 degree interactive brand campaign specifically created for this season which has the potential to be seen by 215 million TV viewers and 1.5 million in-stadia spectators beside running a contest.
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