Delhi shares its geographical boundaries with Uttar Pradesh in the east and Haryana on the other three sides.

1. Geographical Boundaries of Delhi:
- Delhi is located in the northern part of India and is the capital territory of the country.
- It is situated on the western banks of the Yamuna River.
- The geographical coordinates of Delhi are approximately 28.7041° N latitude and 77.1025° E longitude.

2. Boundaries of Delhi:
- Uttar Pradesh (UP) is the neighboring state that shares its border with Delhi in the east.
- Haryana is the neighboring state that shares its border with Delhi on the other three sides, namely north, west, and south.

3. Border with Uttar Pradesh:
- Delhi shares its eastern border with Uttar Pradesh.
- The Yamuna River forms a natural boundary between Delhi and Uttar Pradesh.
- The districts of Ghaziabad and Gautam Buddha Nagar in Uttar Pradesh are adjacent to Delhi.

4. Border with Haryana:
- Haryana shares its border with Delhi on the other three sides.
- The northern border of Delhi is shared with Haryana's districts like Sonipat and Panipat.
- The western border of Delhi is shared with Haryana's districts like Rohtak and Jhajjar.
- The southern border of Delhi is shared with Haryana's districts like Faridabad and Gurugram.

5. Significance of Bordering States:
- The neighboring states of Uttar Pradesh and Haryana play a crucial role in the economic, cultural, and political interactions with Delhi.
- These states contribute to the overall development and growth of the National Capital Region (NCR).
- The presence of these states in close proximity to Delhi facilitates transportation, trade, and connectivity between different regions.

In conclusion, Delhi shares its geographical boundaries with Uttar Pradesh in the east and Haryana on the other three sides. The neighboring states of Uttar Pradesh and Haryana have significant interactions and contribute to the overall development of the National Capital Region.