Is there any music shop in klang valley selling hill light/dark,jade,dominant,or pirastro rosin for violin?

Generally,there's 2 types of rosin...light and dark.Dark rosin is softer and is usually too sticky for hot and humid weather—it is better suited to cool, dry climates. Since light rosin is harder and not as sticky as its darker counterpart, it is also preferable for the higher strings.

Also look for materials added in above mention rosin,

"Gold rosin is said to produce a warm, clear tone and is appropriate for all instruments. The addition of gold to the rosin mixture can soften a harsh-sounding instrument. Solo performers often find that gold rosin helps them produce a clearer, more defined tone.

Silver rosin creates a concentrated, bright tone and is especially good for performance in higher positions. It is best suited for the violin or viola.

Lead-silver rosin is well-suited for both the violin and viola and is a soft but nontacky rosin. It enhances warmth and clarity, producing a fresh playing tone.

Copper is the most defined of all the rosin additives. These rosins can help make playing easier for a beginner (and are said to be the best for 1Ú2- and 3Ú4-size instruments). Copper creates a very warm, almost velvety-soft tone. This rosin is also popular among gamba players."

--Quote from Heather K. Scott