The correct answer is option 2: Supreme Court of India. The Supreme Court of India is the highest judicial authority in the country. It has the final authority to interpret and enforce the Constitution of India. The Supreme Court`s power of judicial review allows it to examine the constitutionality of laws and government actions. This means that if there is any doubt or disagreement about the interpretation of the Constitution, the Supreme Court has the ultimate authority to make a final decision. It ensures that the Constitution is upheld and that the principles and rights enshrined in it are protected. Parliament, option 1, is the legislative branch responsible for making laws. The President, option 3, is the head of state and has limited powers in interpreting the Constitution. The Attorney General of India, option 4, is the government`s chief legal advisor and does not have the final authority to interpret the Constitution.