Section 42A(1) in The M.P. Krishi Upaj Mandi Adhiniyam, 1972
(1)A person holding office of the Vice-President or Member may resign his office at any time in writing addressed to the Secretary to the Government of Madhya Pradesh, Agriculture Department, and his office shall become vacant on the expiry of fifteen clear days from the date of such resignation, unless within the said period of fifteen days he withdraws his resignation in writing.