Dear Neeraj, looking at your horoscope we see that Yes there is an Aspect of Rahu on Jupiter, however that is not Guru Chandal Dosha. The Guru Chandal dosha is formed if Rahu is conjoined with Jupiter. In your case there is an aspect but there is no Guru Chandal dosha as should be there.
Having said that Rahu in the 6th house and Jupiter in the 2nd house is a good position for both. Rahu in the 6th house makes your shrewed and tactful when it comes to handling your enemies. It gives you fighting ability. Jupiter in the 2nd house gives money but the native wastes a lot of money. Therefore that part is not good. Therefore you need to learn to save rather than spend whatever you have.