Schedule can be amended by:

The question pertains to the procedure for amending a Schedule within an Act. The correct answer is Gazette notification by Govt. This is the standard legal method for the executive branch (the government) to officially amend or update parts of an Act, such as its Schedules. A Gazette notification ensures that the amendment is publicly announced and legally recorded. Options like Special Magistrate order, High Court order, or Police recommendation are incorrect because these bodies (judicial or law enforcement) do not possess the legislative or executive authority to amend an Act's Schedule; that power rests with the government or the legislature.