Haldia:
NDTV has accessed a set of documents that point towards a link between HBT's exit and the two MPs' likely involvement. The second letter to Home Secretary of West Bengal on September 19 says workers of private handling agents at Haldia belonging to the Trinamool union had on September 18 gheraoed port offices to protest ships being sent to HBT berths.
Here is the letter written by the port chairman: