Port Blair, Apr 29: The President of Andaman and Nicobar State BJP unit, Mr. R Mohan has written a letter to the Prime Minister of India with copies to the Lt Governor and others at Port Blair and New Delhi against alleged anomaly in the purchase of vehicles by the Port Blair Municipal Council wherein the Party alleges that codal formalities etc were not observed properly and one particular dealer was obliged by the PBMC. The letter has been received by the Office of the Prime Minister and processed for investigation.