This means that malefics are strong in the 3rd, 6th and 11th houses (Upachaya houses) and benefics endowed with strength in the Kendra and Trikona positions with respect to any Bhava prove friendly and auspicious to the Bhava and promote the advancement of the same. In Sutra 48 it is stated that if Mars is in the sixth the native will have marriage and acquire conveyances in his 27th year. We do not understand on what basis this prediction has been made because sixth house has nothing to do with marriage. On the other hand being 12th to 7th (house of marriage) a malefic planet in this house will prove injurious to marital relationships. The sixth house signifies diseases also. If Mars in the sixth is supposed to give good results, he should have freed the native from diseases also. But according to Sutras 51 and 52 Mars in the sixth house while eradicating enemies, will make the native suffer from various kinds of diseases.