Vajra is produced when all the benefic and all the malefic planets are ranged as in the Sakata and Pakshin, i.e. when all the benefic planets occupy the 1st and the 7th houses exclusively and all the malefic planets are in the 4th and the 10th houses exclusively. This order when reversed gives the Yava yoga. The yoga becomes Kamala when the good and evil planets are ranged promiscuously in the 4 Kendra houses. Vapee yoga would result when the 7 planets occupy the 4 Panapara or the 4 Apoklima houses.