Whoever threatens another with any injury to his person, reputation or property with intent to cause alarm to that person, or to cause that person to do any act which he is not legally bound to do, commits

IPC Section  503. Criminal intimidation—Whoever threatens another with any injury to his person, reputation or property, or to the person or reputation of any one in whom that person is interested, with intent to cause alarm to that person, or to cause that person to do any act which he is not legally bound to do, or to omit to do any act which that person is legally entitled to do, as the means of avoiding the execution of such threat, commits criminal intimidation. Explanation—A threat to injure the reputation of any deceased person in whom the person threatened is interested, is within this section.