The branch of the Indian Armed Forces responsible for safeguarding India's maritime interests is the Indian Navy.

The Indian Navy plays a crucial role in protecting the country's maritime boundaries and interests. It is responsible for ensuring the security and sovereignty of India's territorial waters, defending offshore assets, and safeguarding the country's maritime trade routes. Here are some key reasons why the Indian Navy is entrusted with this responsibility:

1. Historical Significance: The Indian Navy has a long and rich history dating back to the ancient times when Indian maritime trade flourished. It has evolved over the centuries and played a crucial role in safeguarding India's interests during times of war and peace.

2. Size and Capabilities: The Indian Navy is the fifth-largest Navy in the world, equipped with a wide range of modern warships, submarines, aircraft, and other assets. It has the ability to project power and maintain a presence in the Indian Ocean region, which is strategically vital for India's security and economic interests.

3. Maritime Security: The Indian Navy is responsible for ensuring the security of India's vast coastline, island territories, and Exclusive Economic Zone (EEZ). It conducts regular patrols, surveillance, and anti-piracy operations to counter any threats to India's maritime security.

4. Protection of Trade Routes: The Indian Navy plays a crucial role in protecting India's maritime trade routes, which are vital for the country's economic growth and energy security. It conducts regular patrols in the Indian Ocean region, safeguards merchant ships, and ensures the safe passage of goods.

5. Strategic Importance: The Indian Ocean region holds significant strategic importance due to its vast resources, trade routes, and geopolitical dynamics. The Indian Navy's presence in the region helps maintain stability, deter potential adversaries, and protect India's national interests.

6. International Cooperation: The Indian Navy actively engages in bilateral and multilateral naval exercises, joint patrols, and maritime security initiatives with other countries. This fosters cooperation, strengthens relationships, and enhances maritime security in the region.

In conclusion, the Indian Navy is responsible for safeguarding India's maritime interests due to its historical significance, size and capabilities, role in maritime security, protection of trade routes, strategic importance, and international cooperation. It plays a crucial role in ensuring India's security, economic growth, and regional stability in the Indian Ocean.