Emirates Shipping Line once again boosted its port congestion surcharges on containers shipped through India’s Port of Chennai.

Effectively immediately, ESL’s new surcharges are $210 per 20-foot container on Chennai-Singapore-Port Kelang cargo and $75 per TEU on the Chennai-Colombo trade lane.

The Middle East carrier had previously on Sept. 28 revised its surcharges to $150 per TEU and $75 per TEU, respectively, from a flat $65 per-TEU imposed as of Sept. 1.

Chennai is India’s second-largest container port, having racked up a record throughput of 1.52 million TEUs in fiscal 2010-11 ended March 31.