The correct answer is option 4: "It has increased the volume and diversity of trade."

Globalization's impact on India's trade has been overwhelmingly positive in terms of increased volume and diversity. The opening up of the Indian economy to foreign trade and investment has led to a significant expansion of its export and import activities. This is evident in the growth of various sectors such as IT, pharmaceuticals, and textiles, which now cater to global markets. The increased interaction with global markets has also resulted in a wider range of goods and services becoming available to Indian consumers.

Options 1, 2, and 3 are incorrect because:

• Option 1: Globalization has actually increased India's dependence on foreign markets, making it more integrated into the global economy.
• Option 2: Globalization has increased competition, rather than enhancing self-reliance and autonomy. Indian businesses face challenges from both domestic and international players.
• Option 3: Globalization has intensified competition, not reduced it. Indian businesses must constantly adapt and innovate to remain competitive in the global marketplace.

In summary, globalization has profoundly impacted India's trade, resulting in significantly increased trade volume and diversification of both exports and imports.