Dear Pratibha,
There is nothing wrong per se for having break in woman's CV. What matters is reasons for the break. If the reasons are valid then you may not bother much about it. Those who turn down your candidature for this reason are unprofessional. It is better to keep off from such companies.
Possibly it could be the mindset of those who select you. Many HRs think that uninterrupted service is essential. However, little do they understand that it may not be possible in all the cases. Career break does not evaporate knowledge from one's head or reduces skills in big way. Career break need not be construed as stigma. But then this is what the fallacy of the mindset of HRs is. Keep on trying. You will find someone out there who will judge you based on your skill or knowledge. By the way, present India HR Head of Google India had career break from 2001 to 2006!
Other side of the coin could be that your candidature might not be fitting the bill and HR could be using career break as alibi to turn you down. Therefore, whenever you attend the job interview, immediately after return, write of the down the questions that were asked and the answers that you had given. Show this to some senior person and let him/her evaluate your replies. The feedback will be helpful to you in giving better replies in future interviews!
All the best!
Dinesh Divekar