The detailed provisions regarding the Amendment of the Constitution of India are contained in Article 368 in Part XX of the Indian Constitution. (d) When a vacancy occurs in the Legislature the Governor immediately shall call an election to fill the vacancy. (Sec.Article 368(2) of the Indian Constitution outlines the process to be followed in the event of a constitutional change being proposed. Simple Majority Amendment. A constitutional amendment is a modification of the constitution of a polity, organization or other type of entity. The procedure of amendment in the constitution is laid down in Part XX (Article 368) of the Constitution of India. The United States Constitution has been amended twentyseven times since 1788. A session is two years long. The ACLU dares to create a more perfect union — beyond one person, party, or side. Copyright Office Reading Room services are available in the James Madison Memorial Building, room LM-463. ×. Features.