Section 37(3)(b) in Gorkhaland Territorial Administration Act, 2011
(b)may, at any time, by giving notice in writing under his hand addressed to the Chief Executive of the Gorkhaland Territorial Administration, resign his office from such date as may be specified in the notice or, if no such date is specified in the notice, from the date of his acceptance by the Chief Executive of the Gorkhaland Territorial Administration;