There are allegations that he has contact with Awami League leaders and activists who went to India after August 5, and that he is also involved in money transactions through hundi. However, no bank records or reliable documents in support of these allegations have been found publicly.
In addition, there are allegations against Nirmal and his brother Kamal of embezzling money in the name of a travel business, fraud in land transactions, and taking money by promising to give ownership of government land.
It has been learned that a case is ongoing with the Anti-Corruption Commission regarding allegations of about Tk 50 crore concerning approximately 1.71 acres of land belonging to the Roads and Highways Department in the Dogair mouza of Demra.
On the other hand, locals have also alleged that Nirmal Krishna Sarker embezzled temple money and gold ornaments. No statement could be obtained from Nirmal Krishna Sarker and his brother Kamal regarding these allegations.
