Explanation:

- Option 1: Hindu

- Hindus constitute the majority religious group in India, with a significant presence in both urban and rural areas.

- However, the percentage of Hindus in urban areas is lower compared to some minority religious groups.

- Option 2: Bauddh (Buddhist)

- Buddhists are a minority group in India, with a relatively small population.

- They are predominantly found in certain regions and do not have the highest urban concentration.

- Option 3: Christian

- Christians are another minority group with a considerable urban presence.

- Nevertheless, they do not have the highest urban population percentage.

- Option 4: Jain

- Correct Answer: Jains have the highest proportion of their population residing in urban areas compared to other religious groups in India.

- They are predominantly an urban community with a high emphasis on commerce and trade activities.

Correct Answer: Option 4: Jain