Good job with the speculation, for your efforts here are the intentions behind my hints:
The killer of great proportions separating Groogy (kangra) and Katz (Timurids) is the Hindukush.
The source of riches in Bahmanis is Golconda (synonymous to riches to among others the artist Magritte).
The killer of great proportions separating Groogy (kangra) and Katz (Timurids) is the Hindukush.
The source of riches in Bahmanis is Golconda (synonymous to riches to among others the artist Magritte).