The President of India is the ceremonial head of state and also plays a critical role in the functioning of the country's political system. Here are the main powers and functions of the Indian President:

• Constitutional Powers - The President is the head of the state of India and enjoys a range of constitutional powers, including the power to appoint the Prime Minister and other important officials such as judges of the Supreme Court and Governors of States.
• Legislative Functions - The President convenes and addresses both houses of Parliament and can summon or prorogue either house. The President also has the power to nominate members to the Rajya Sabha, the upper house of the Parliament.
• Executive Functions - The President is the supreme commander of the Indian Armed Forces and appoints members of the Union Cabinet on the advice of the Prime Minister. The President also possesses emergency powers, including the power to impose President's Rule in States.
• Judicial Functions - The President has the power to pardon and commute the sentences of persons convicted of crimes. In cases where the sentence is a death sentence, the President decides on mercy petitions.
• International Diplomacy - The President has the power to appoint ambassadors and diplomatic representatives to other countries on behalf of India.
• Ceremonial Functions - The President is responsible for the ceremonial functions of the state and also receives foreign dignitaries.

In addition to these powers, the President also has an important role to play in promoting the general welfare of the people and safeguarding the Constitution. The role of the President in India's governance and administration is therefore a crucial one.