Explanation:

- Anangpal: He is credited with establishing the city of Delhi. Anangpal Tomar laid the foundation of what would become a great city and paved the way for its future growth and importance. His establishment was a significant contribution to the region's history.

- Vajrat: Not known to be associated with the founding of Delhi. There is no significant historical evidence linking this ruler to Delhi's establishment.

- Rudrane: Also not associated with Delhi's foundation. There are no historical records that mention Rudrane in this context.

- Devraj: Like the previous options, there's no connection between Devraj and the establishment of Delhi.