Is it possible to get EWS to a married women whos husband comes under EWS catogery but not the father?
Yes, it is possible.
Whenever a mail applies for EWS certificate, then if he is married then his total family income (his income + his wife's income) is taken into consideration and if he is not married, then his parent's total income is taken into consideration.
Similar is case of a woman.
You are asking about a married woman, then she comes under EWS category if her husband comes.