Rahu in rashi of mangal conjuct a malefic in 8th or 12th or placed 7th from moon.This yoga makes one loose a spouse in 7-8 years.
Cancer (kark )rashi in 7th with sun and mars with malefics or aspected by the same but if lagan and moon are also afflicted.
Mars in 7th for alady conjuct the malefic or aspected by malefics.
Lord of 8thin 7hth and lord of 7th have an aspect of malefics+7th house has a malfic aspect.
If there are 3malefics in 7th then the lady is of loose morals.
If guru and venus are in lagan and venus has less degrees .
Two malefics in 7th make a lady inclined towards adultery and a widow.
Lord of 6th And 8thin 6th or 12 th conjuct a malefic ,leads to early widow hood.
Exchange of 7th and 8th lords and aspect of malefics cuases one to become a widow.
Surya,mangal and rahu in lagan,if venus is in second then this lady will be intrested in other men soon after being widowed.
7 th lord in 8th or 12th lord in 7th.
moon conjuct rahu sun( sat and venus.)