Province where the Unionist Party was most strong:

The Unionist Party, which represented landlords, was most strong in the province of Punjab. This can be attributed to several factors:

Historical Context:
- Punjab had a long history of feudalism and landlordism, with large landholdings and powerful landowning families.
- The Unionist Party was formed in Punjab in the early 1920s as a coalition of landlords who sought to protect their interests and maintain their influence in the political arena.

Demographic Composition:
- Punjab had a significant population of landlords who were influential in local politics and had a strong presence in rural areas.
- The Unionist Party was able to mobilize this landlord class and consolidate their support, making it a dominant political force in the province.

Political Landscape:
- The Unionist Party was successful in Punjab due to its ability to strike a balance between various interest groups, including landlords, peasants, and urban elites.
- It positioned itself as a party that could represent the diverse interests of the province, which helped it gain popularity and support.

Economic Factors:
- Punjab was an agricultural powerhouse, with fertile lands and a thriving agrarian economy.
- Landlords in Punjab held significant economic power and the Unionist Party was able to leverage this economic influence to strengthen its political base.

Overall, the Unionist Party's strength in Punjab was a result of historical, demographic, political, and economic factors that favored the dominance of landlords in the province.