Is khalsa college at harrow in the black list catageory?

There is no publicly available "blacklist" for colleges, including Khalsa College in Harrow. The term "blacklist" in this context is misleading and doesn't reflect any official designation. College ratings and reviews may exist, but these are subjective and vary across different sources. If you have concerns about a specific college, it's best to research its accreditation, student reviews, and other relevant factors from reputable sources.