If there is a difference of Rahu in 11th House for Pisces Ascendant in the Mahadasha of Moon, then the person has to face miseries like enemy, disease, fear of fire etc., destruction of wealth, destruction of brothers and sisters. It is difficult to get happiness in this period.
If there is a difference of Rahu in the Mahadasha of Mars, then the person worships the deities, Brahmins, etc. and takes advantage of pilgrimage, but the fear of the government remains.