Former Trinamool Congress (TMC) leader and Bhartiya Janata Party (BJP) MLA Suvendu Adhikari on Monday wrote a letter to the Union Health Minister Mansukh Mandaviya over the surge of dengue cases in the state and urged the Centre to send a 'Team of Doctors to guide the State Govt and provide relief to the people. "I am writing you this letter as the State of West Bengal is in the midst of a Health Emergency," the letter said.