The correct answer is option 1, which includes options 1, 2, and 3.

1. Strengthened urbanization: The establishment of Mughal rule in India resulted in the development and growth of cities. The Mughals built many new cities and expanded existing ones, leading to an increase in urbanization.

2. Strengthened inter-urban contact in riparian North India: Riparian refers to areas located along the banks of rivers. The Mughals had a strong presence in North India, which is geographically rich in rivers. Their rule facilitated improved connectivity and contacts between different cities and regions in North India, especially along the rivers.

3. Increased India`s sea trade: The Mughals had a well-developed navy and established control over important coastal regions, which boosted sea trade. The Mughal rulers encouraged trade and provided a safe environment for merchants to conduct their business, resulting in an increase in India`s sea trade.

Option 4, which states that the establishment of Mughal rule in India decreased the risk of carrying long-distance trade, is not supported in the question and is not a correct answer.